camera identify
Try for Free
tab list
PictureThis
English
arrow
English
繁體中文
日本語
Español
Français
Deutsch
Pусский
Português
Italiano
한국어
Nederlands
العربية
Svenska
Polskie
ภาษาไทย
Bahasa Melayu
Bahasa Indonesia
PictureThis
Search
Search Plants
Try for Free
Global
English
English
繁體中文
日本語
Español
Français
Deutsch
Pусский
Português
Italiano
한국어
Nederlands
العربية
Svenska
Polskie
ภาษาไทย
Bahasa Melayu
Bahasa Indonesia
This page looks better in the app
care_about care_about
About
care_basic_guide care_basic_guide
Basic Care
care_advanced_guide care_advanced_guide
Advanced Care
care_scenes care_scenes
More About How-Tos
care_seasonal_tips care_seasonal_tips
Seasonal Tips
care_pet_and_diseases care_pet_and_diseases
Pests & Diseases
care_more_info care_more_info
More Info
care_faq care_faq
FAQ
care_new_plant care_new_plant
New Plant Care

How to Care for Common Sunflower

The common sunflower is recognizable for its bright flower on a very tall stem. It is often grown in gardens. These flowers have been important in culture: they were worshipped by the ancient Inca people, and today, they represent eco-friendly movements. The artist Vincent van Gogh made a famous series of paintings about common sunflower. Wild versions of the plant branch out to many flower heads, but domesticated plants typically only have one.
symbolism

Symbolism

Silent love, admiration, loyalty, long life, good fortune
Water
Water
Twice per week
Sunlight
Sunlight
Full sun
Common sunflower play
Common sunflower
video play
Common sunflower
Common sunflower
Common sunflower
care_basic_guide

Basic Care Guide

Cultivation:WaterDetail

How to Water Common sunflower?

Sunflowers have different water requirements at different stages of growth. The soil must be moist during sowing and transplanting. The plants need sufficient water, especially during the seedling stage. After that, the soil should be kept moist but not excessively wet. Some drought is beneficial for root growth and to develop a plant’s drought tolerance. In the summer, when the temperature increases and water evaporates more rapidly, the amount of water supplied can be increased as necessary to prevent wilting, which can affect the growth of the plants.
The time from the emergence of flower buds to blooming is the peak period of water demand in sunflowers. During this time, there should not be a lack of water; if the soil becomes too dry, it should be watered. When sunflowers are grown in pots, the plants are often large while the flower pots are small, and there may be just a little soil and insufficient water. Therefore, timely watering is required during the growth period; otherwise, the leaves tend to loss water and wither. The soil should not be too wet, however, otherwise the leaves at the base of the plant tend to turn yellow.
Cultivation:WaterDetail
waterreminders

Never miss a care task again!

Plant care made easier than ever with our tailor-made smart care reminder.
What is the best way to water my Common sunflower?
To water Common sunflower, you can use a garden hose with a spray nozzle, a watering can, or just about any other common watering tool. Generally, Common sunflower is not too picky about how they receive their water, as they can live off of rainwater, tap water, or filtered water. Often, you should try not to water this plant from overhead, as doing so can damage the leaves and flowers and may lead to disease as well. At times, the best method for watering this plant is to set up a drip irrigation system. These systems work well for Common sunflower as they apply water evenly and directly to the soil. For one Common sunflower that grows in a container, you can use a similar watering approach while changing the tools you use. To water a container-grown Common sunflower, use a cup, watering can, or your tap to apply water directly to the soil.
Read More more
What should I do if I water my Common sunflower too much or too little?
The remedy for underwatering Common sunflower is somewhat obvious. When you notice that your plant lacks moisture, simply begin watering it on a more regular basis. The issue of overwatering can be a much more dire situation, especially if you fail to notice it early. When your Common sunflower is overwatered, it may contract diseases that lead to its decline and death. The best way to prevent this outcome is to choose a proper growing location, one that receives plenty of sunlight to help dry the soil and has good enough drainage to allow excess water to drain rather than pooling and causing waterlogged soils. If you overwater your Common sunflower that lives in a pot, you may need to consider changing it to a new pot. Your previous container may not have contained soil with good drainage or may not have had sufficient drainage holes. As you repot your overwatered Common sunflower, make sure to add loose soils and to use a pot that drains efficiently.
Read More more
How often should I water my Common sunflower?
Common sunflower needs water regularly throughout the growing season. Beginning in spring, you should plan to water this plant about once per week. As the season presses on and grows warmer, you may need to increase your watering rate to about two to three times per week. Exceeding at this rate can be detrimental to your Common sunflower. With that said, you should also ensure that the soil in which your Common sunflower grows remains relatively moist but not wet, regardless of how often you must water to make that the case. Watering Common sunflower that lives in a pot is a bit different. Generally, you'll need to increase your watering frequency, as the soil in a pot can heat up and dry out a bit faster than ground soil. As such, you should plan to water a container-grown Common sunflower a few times per week in most cases, versus just once per week for an in-ground plant.
Read More more
How much water does my Common sunflower need?
There are a few different ways you can go about determining how much water to give to your Common sunflower. Some gardeners choose to pick their water volume based on feeling the soil for moisture. That method suggests that you should water until you feel that the first six inches of soil have become moist. Alternatively, you can use a set measurement to determine how much to water your Common sunflower. Typically, you should give your Common sunflower about two gallons of water per week, depending on how hot it is and how quickly the soil becomes dry. However, following strict guidelines like that can lead to overwatering if your plant requires less than two gallons per week for whatever reason. When growing Common sunflower in a container, you will need to use a different method to determine how much water to supply. Typically, you should give enough water to moisten all of the layers of soil that have become dry. To test if that is the case, you can simply stick your finger in the soil to feel for moisture. You can also water the soil until you notice a slight trickle of excess water exiting the drainage holes of your pot.
Read More more
How can I tell if i'm watering my Common sunflower enough?
It can be somewhat difficult to avoid overwatering your Common sunflower. On the one hand, these plants have relatively deep roots that require you to moisten the soil weekly. On the other hand, Common sunflower are plants that are incredibly susceptible to root rot. Along with root rot, your Common sunflower may also experience browning as a result of overwatering. Underwatering is far less likely for your Common sunflower as these plants can survive for a while in the absence of supplemental watering. However, if you go too long without giving this plant water, it will likely begin to wilt. You may also notice dry leaves.
Read More more
How should I water my Common sunflower through the seasons?
You can expect your Common sunflower’s water needs to increase as the season moves on. During spring, you should water about once per week. Then, as the summer heat arrives, you will likely need to give a bit more water to your Common sunflower, at times increasing to about three times per week. This is especially true of Common sunflower that grow in containers, as the soil in a container is far more likely to dry out faster than ground soil when the weather is warm. In autumn, while your Common sunflower is still in bloom, it may need a bit less water as the temperature has likely declined, and the sun is no longer as strong as it was in summer.
Read More more
How should I water my Common sunflower at different growth stages?
Common sunflower will move through several different growth stages throughout the year, some of which may require more water than others. For example, you will probably start your Common sunflower as a seed. While the seed germinates, you should plant to give more water than your Common sunflower will need later in life, watering often enough to maintain consistent soil moisture. After a few weeks, your Common sunflower will grow above the soil and may need slightly less water than at the seedling phase. Then, once this plant is mature, you can begin to use the regular watering frequency of about once per week. As flower development takes place, you may need to give slightly more water to aid the process.
Read More more
What's the difference between watering Common sunflower indoors and outdoors?
There are several reasons why most Common sunflower grow outdoors rather than indoors. The first is that these plants typically grow to tall. The second reason is that Common sunflower needs more daily sunlight than most indoor growing locations can provide. If you are able to provide a suitable indoor growing location, you may find that you need to give your Common sunflower water a bit more often than you would in an outdoor growing location. Part of the reason for this is that indoor growing locations tend to be a lot drier than outdoor ones due to HVAC units. The other reason for this is that soil in containers can dry out relatively quickly as well compared to soil in the ground.
Read More more
left right
Cultivation:FertilizerDetail

How to Fertilize Common sunflower?

When sunflowers are grown in pots, liquid fertilizer or compound fertilizer should be applied once every 7 to 10 days. During the growth of seedlings, nitrogen fertilizer should be applied to promote the luxuriant growth of stems and leaves. When budding begins, more phosphate-potassium fertilizer should be applied, which will provide sufficient nutrients to promote robust growth of the buds and facilitate blooming.
If sunflowers are planted in the garden, no fertilizer is required if the soil is already fertile. However, if the soil is relatively poor, nitrogen fertilizer should be applied during the early stages of growth and phosphorus and potassium fertilizers should be applied during the late stages, similar to that carried out for potted plants. They can be fertilized once every 20 days during the growth period, with an additional two or three applications of thin phosphate-potassium fertilizer provided before blooming.

Fertilizer

Common sunflower, a bright and cheerful annual or perennial as cool-weather annuals(tender perennial but is most often grown as an annual), is a welcome sign of gardening season to most. When it makes its first appearance in the stores and nurseries for the year, folks get right to work planning out their gardens to include Common sunflower amongst their favorites.
Plants need nutrients to survive; most gardeners, regardless of experience, are well aware of this factor. However, without food, Common sunflower will die out soon after the first pollination. Therefore, providing the right type of nutrients in the right amounts is the best way to keep Common sunflower going throughout the blooming season and producing large, beautiful flowers. Fertilizer also helps Common sunflower build a large, healthy root system. This plant needs all the help it can get since its root system is very thin and easily damaged. Fertilizing at planting helps Common sunflower build a solid root structure that not only provides stability to the plant, but also sets the stage for a sensational flowering performance. When timed correctly, fertilization can greatly extend Common sunflower's flowering period.
Common sunflower puts on tremendous growth early in the growing season, once the danger of the last frost has passed. It’s during this time that Common sunflower should be fertilized; more specifically, during planting. The idea is to apply when the plant is first planted in the ground or in planters; however you choose to plant it. This will be the only dose of fertilizer until later in the year, when blooms are in full force.Once the season is in full swing and Common sunflower has opened most of its blooms at full size, it’s time to start fertilizing again. Around the time when blooms are at peak output, begin fertilizing again once every three to four weeks, as weather permits. Then, after Common sunflower starts to put out fewer new blooms, stop fertilizing; there’s no need to fertilize when the plant can’t produce any more blooms.
Most types of Common sunflower need the same general balance of nutrients from fertilizer. These should come in the form of a fertilizer that’s formulated specifically for high-yield blooming plants. A fertilizer with a higher level of phosphorus is the best option. This type of fertilizer has a higher P number in its NPK number, for example 10-30-10.Several fertilizer brands sell a fertilizer that’s perfect for blooming plants like Common sunflower, which are an easy and fuss-free way to provide the right nutrients. If you do choose to use a pre-mixed fertilizer, follow the directions on the package to prevent Common sunflower from getting too much or too little fertilizer, both of which can cause the plant to grow poorly or even wilt entirely.Depending on the type of fertilizer you have, specific fertilizing instructions may vary. However, there are a few general tips for applying most types of fertilizer to Common sunflower. The first fertilizer application, which should be when you first plant Common sunflower, will likely consist of mixing the recommended amount of fertilizer into the soil before planting and watering in the Common sunflower. Subsequent fertilizing may look a little different. For pellet fertilizers, simply mix the pellets into the top inch of soil around the outer edge of the plant, where the roots are. Water them in very well at first, then water regularly after that. Other fertilizers may be mixed into a watering can and applied just like a regular watering. Follow any instructions on fertilizer packaging for consistency, but if you’d rather keep things on a regular schedule, shoot for every three to four weeks.
Over-fertilizing is a very easy mistake to make for first-time gardeners, or even for experienced gardeners trying out a new product. Fortunately, Common sunflower makes this issue known very well by displaying several signs of distress. You may notice that its leaves are yellowing quickly, the foliage may wilt, or new blooms may be under-developed. These are all clear signs of too much food.When you fertilize Common sunflower too frequently, you create uninhabitable soil conditions. Soil may become too hot, which is a term used to describe when soil is too saturated with minerals, nutrients, or compost, and ends up burning the roots of anything planted in it. It’s a good idea to flush out the soil well once a month or so, just by watering twice as much as normal with good drainage.
While regular fertilizing is important for Common sunflower, it absolutely can be applied at the wrong time. Some situations call for holding back the fertilizer once in a while. These are usually climate related, but they also include a variety of controllable factors. Essentially, when something is wrong with the plant, the soil, or the climate, wait it out until things have been smoothed over and the plant has recovered.An example of when not to fertilize is if there are severe or unexpected changes in the weather. If a cold nap suddenly comes in the middle of summer, wait until it’s warm again to start fertilizing. The same stands for if the soil becomes too dry or too packed to absorb anything. At this point, fertilizer will be going straight to the roots, rather than being diffused by soil before it reaches them. As you can imagine, the roots of Common sunflower aren’t very fond of that.When temperatures soar during the hottest parts of the day into the 90-degree fahrenheit range, don’t apply fertilizer. Since fertilizer can be broken down at various speeds depending on temperature, it’s especially important not to allow hot temperatures to break it down too quickly. Pests or diseases should also be treated and cleared up before re-fertilizing.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
qrcode
Scan the QR code with your phone camera to download the app
close
Cultivation:FertilizerDetail
Why do I need to fertilize my Common sunflower?
Plants need nutrients to survive; most gardeners, regardless of experience, are well aware of this factor. However, without food, Common sunflower will die out soon after the first pollination. Therefore, providing the right type of nutrients in the right amounts is the best way to keep Common sunflower going throughout the blooming season and producing large, beautiful flowers.
Fertilizer also helps Common sunflower build a large, healthy root system. This plant needs all the help it can get since its root system is very thin and easily damaged. Fertilizing at planting helps Common sunflower build a solid root structure that not only provides stability to the plant, but also sets the stage for a sensational flowering performance. When timed correctly, fertilization can greatly extend Common sunflower's flowering period.
Read More more
When is the best time to fertilize my Common sunflower?
Common sunflower puts on tremendous growth early in the growing season, once the danger of the last frost has passed. It’s during this time that Common sunflower should be fertilized; more specifically, during planting. The idea is to apply when the plant is first planted in the ground or in planters; however you choose to plant it. This will be the only dose of fertilizer until later in the year, when blooms are in full force.
Once the season is in full swing and Common sunflower has opened most of its blooms at full size, it’s time to start fertilizing again. Around the time when blooms are at peak output, begin fertilizing again once every three to four weeks, as weather permits. Then, after Common sunflower starts to put out fewer new blooms, stop fertilizing; there’s no need to fertilize when the plant can’t produce any more blooms.
Read More more
When should I avoid fertilizing my Common sunflower?
While regular fertilizing is important for Common sunflower, it absolutely can be applied at the wrong time. Some situations call for holding back the fertilizer once in a while. These are usually climate related, but they also include a variety of controllable factors. Essentially, when something is wrong with the plant, the soil, or the climate, wait it out until things have been smoothed over and the plant has recovered.
An example of when not to fertilize is if there are severe or unexpected changes in the weather. If a cold nap suddenly comes in the middle of summer, wait until it’s warm again to start fertilizing. The same stands for if the soil becomes too dry or too packed to absorb anything. At this point, fertilizer will be going straight to the roots, rather than being diffused by soil before it reaches them. As you can imagine, the roots of Common sunflower aren’t very fond of that.
When temperatures soar during the hottest parts of the day into the 90-degree fahrenheit range, don’t apply fertilizer. Since fertilizer can be broken down at various speeds depending on temperature, it’s especially important not to allow hot temperatures to break it down too quickly. Pests or diseases should also be treated and cleared up before re-fertilizing.
Read More more
What type of fertilizer does my Common sunflower need?
Most types of Common sunflower need the same general balance of nutrients from fertilizer. These should come in the form of a fertilizer that’s formulated specifically for high-yield blooming plants. A fertilizer with a higher level of phosphorus is the best option. This type of fertilizer has a higher P number in its NPK number, for example 10-30-10.
Several fertilizer brands sell a fertilizer that’s perfect for blooming plants like Common sunflower, which are an easy and fuss-free way to provide the right nutrients. If you do choose to use a pre-mixed fertilizer, follow the directions on the package to prevent Common sunflower from getting too much or too little fertilizer, both of which can cause the plant to grow poorly or even wilt entirely.
Read More more
How do I fertilize my Common sunflower?
Depending on the type of fertilizer you have, specific fertilizing instructions may vary. However, there are a few general tips for applying most types of fertilizer to Common sunflower. The first fertilizer application, which should be when you first plant Common sunflower, will likely consist of mixing the recommended amount of fertilizer into the soil before planting and watering in the Common sunflower.
Subsequent fertilizing may look a little different. For pellet fertilizers, simply mix the pellets into the top inch of soil around the outer edge of the plant, where the roots are. Water them in very well at first, then water regularly after that. Other fertilizers may be mixed into a watering can and applied just like a regular watering. Follow any instructions on fertilizer packaging for consistency, but if you’d rather keep things on a regular schedule, shoot for every three to four weeks.
Read More more
What happens if I fertilize my Common sunflower too much?
Over-fertilizing is a very easy mistake to make for first-time gardeners, or even for experienced gardeners trying out a new product. Fortunately, Common sunflower makes this issue known very well by displaying several signs of distress. You may notice that its leaves are yellowing quickly, the foliage may wilt, or new blooms may be under-developed. These are all clear signs of too much food.
When you fertilize Common sunflower too frequently, you create uninhabitable soil conditions. Soil may become too hot, which is a term used to describe when soil is too saturated with minerals, nutrients, or compost, and ends up burning the roots of anything planted in it. It’s a good idea to flush out the soil well once a month or so, just by watering twice as much as normal with good drainage.
Read More more
left right
Cultivation:SunlightDetail

What Are the Sunlight Requirements for Common sunflower?

The seedlings, leaves, and flower heads of sunflowers all exhibit very strong phototropism. Sufficient sunlight will make the seedlings grow strongly and healthily. During the middle period of their growth stage, sufficient sunlight can promote the growth of stems and leaves and the differentiation of flower buds. If sunflowers receive sufficient sunlight during their entire growth period, the stems and leaves grow healthily and the flowers are vivid and bright. However, if there is continuous rain or they are grown for a long time in a partially shady spot they may grow poorly and become weak. The stems will not be straight, the leaves will be soft and droop in yellow green, and the flower head will be small and irregular.
Cultivation:SunlightDetail
lightmeter

Know the light your plants really get.

Find the best spots for them to optimize their health, simply using your phone.
How much sunlight should Common sunflower get per day to grow healthily?
You must expose the plants to at least 6 to 8 hours of sunlight daily. They prefer more exposure to the morning light, especially in the summer. The Common sunflower needs full sun and more sunlight that it can get. The more light these species get, the more they can manufacture food, produce beautiful blooms, and survive.
Read More more
What type of sunlight does Common sunflower need?
The Common sunflower grows best under full sunlight. It's best not to crowd them together so they can get exposure to the sun evenly. The leaves shouldn't be starved with sunlight. If planted in pots, try to expose the herbaceous flowers in windows with direct sun and ensure they receive full sunlight regardless of the months.
They don't tend to do well in partial or filtered light as this will not produce strong stems and healthy flowers. It's best if the Common sunflower is always exposed to the sun.
Read More more
Can sunlight hurt plants? How to protect Common sunflower from sun and heat damage?
When the temperature rises above 90℉(32℃), the Common sunflower can get damaged by extreme temperatures, especially if they are exposed to many hours of sun. It's always ideal for providing some shade from the light in the afternoon in the summer. It's always important to keep in mind that the sunlight in the summer is stronger than the one in the winter. Sunlight exposure is also 50% longer in the summer than in the winter.
If the Common sunflower is too stressed with sunlight, you might want to keep them fully hydrated. Water them when the top of the soil is about 2 inches dry, and move the plants indoors if it's too hot outside. This is the case if they are planted in containers.
It can be normal for the plant leaves to wilt during the day. Generally, they can recover at night. However, when you notice that the Common sunflower is still drooping, this means that the plant is losing water fast, and you need to water them.
Read More more
Should I protect Common sunflower from sun exposure?
The Common sunflower does not need any protection from the sun. In fact, they love the sun, and some species are heliotropic. Plant them in south-facing gardens whenever possible so they can be exposed from morning to afternoon. While the sun can benefit them, some may experience a sunburn. You might offer protection from the afternoon and midday sun through a shade of a tree or a wall.
Growing the Common sunflower in shady areas is impossible because the larger flowers would require a lot of energy to grow and produce. Always provide the lighting conditions and set them in an area with full sun for best results.
Read More more
What will happen if Common sunflower gets inadequate sunlight?
When the Common sunflower does not get adequate sunlight, or they are not placed in full sun locations, it's worth noting that the photosynthetic process will slow down. A lack of sunlight will cause the stems to become more leggy since they become thin and long since they tend to seek too much sunlight. They will not bloom and produce seeds in the shade.
Inadequate sunlight will also mean that the older leaves can die, the color of the new ones is lighter than the old foliage, and the new growth is smaller than the last ones.
The Common sunflower indeed loves the sun so much. However, they can wilt when exposed to excessive heat and ultraviolet light during the extreme summer months, so be careful. You might want to cover them with a net that has a green shade, especially in the summer, to prevent the leaves and the flowers from scorching. When they are indoors, reduce the heat with the help of a fan.
Read More more
Does Common sunflower need special care about sunlight during its different growth stages?
When the Common sunflower is growing, they need more light than their mature counterparts. The younger ones should receive adequate light, but they might not be prepared for sudden full sunlight, especially if they are grown in a nursery. They can be more sensitive to the summer sun, so the lighting should be gradual and slow.
Read More more
How much light does Common sunflower need for photosynthesis?
During summer or late spring, the Common sunflower needs 6 to 8 hours of direct light every single day. This is whether they are planted outdoors. If the Common sunflower is planted in pots or you're growing them in the winter, they need direct fluorescent lights that help them grow better. Make sure to place them in an indoor area where they are facing south or east so they can have enough sunlight for photosynthesis.
Read More more
Are there any cautions or tips for sunlight and Common sunflower?
When transplanting the plants, they should not be exposed to sudden sunlight. Give the Common sunflower to grow and mature before transplanting outside. Some species of herbaceous plants can grow taller and might cast a shade on other young plants. Allow between 80 to 100 days of growing season before planting another batch to ensure that every plant receives more than enough sunlight for at least 6 hours a day.
Make sure that the Common sunflower receives the best light possible, especially if it's planted in a nursery. These are sun-loving plants, but too much sunlight with a very hot temperature is also detrimental to their growth. Indoor lights should be replaced with natural sunlight as much as possible since these species crave this every day.
Read More more
left right
Cultivation:PruningDetail

How to Prune Common sunflower?

To ensure the robust growth of the main stem, the lateral buds of sunflowers should be removed so as not to distribute nutrients too widely and affect the growth of flowers on the main stem. If planted in a border, the top bud of the main stem can be picked off, so that branching occurs to give 4-5 blooms and the plant remains quite short and bushy. For sunflowers planted to provide cut flowers, the apical bud should be removed to facilitate the growth of lateral stems. After such treatment, several stems will be produced, and 7-10 flowers can be harvested from one plant. For sunflowers grown in pots, it is recommended to keep the primary stem and remove the lateral buds, since in this case it is better to have just one flower.
Cultivation:PruningDetail
Is pruning necessary for my Common sunflower?
Common sunflower is a kind of annual plant so it doesn't need much pruning. You only need to cut off and clean the diseased, yellow or dropped leaves and stems during its growing period. This will help your Common sunflower to stay away from pathogens infection.
Read More more
How do I prune my Common sunflower?
During the growth of the plant, yellowing, drying and spotted leaves are produced, and these spotted and discolored leaves need to be trimmed off. If the whole piece of leave is discolored or infected, you will need to cut it off completely. In other situations, you will only need to cut off the discolored or infected part on certain leaves. Common sunflower above the ground will die and dry up in the winter, and the dead plants need to be cleaned up.
Read More more
Are there any cautions I should be careful with when pruning my Common sunflower?
Common sunflower leaves are delicate, so take care not to score or bruise them. Unless the leaves are withered or heavily discolored, do not prune the leaves from the lowermost branches unless they’re damaged. They typically grow the largest, so they supply the plant with critical energy to keep it growing right. Please prevent the wounds from water after pruning until they are fully recovered. Remember always sterilize the tools before pruning. When the pruning is finished, please throw all the waste leaves and stems into the trashbins to avoid diseases and bugs.
Read More more
Are there any tips for pruning my Common sunflower?
  1. Sterilize all the tools before pruning; unclean tools will pass pathogens to the plant through wounds;
  2. Prune on sunny days because the new cuts will be infected by pathogens if they're distained by rain or water.
  3. Throw all the waste leaves and stems into trashbins, they will easily rot and attract diseases and bugs
Read More more
When should/shouldn't I prune my Common sunflower?
Expect to prune your Common sunflower every week if it’s growing well or every two weeks if it grows slowly. It is always good to prune it on sunny days because if you prune it on rainy days, the rainwater will distain the cuts and cause the whole plant to be infected.
Read More more
What should I look for when pruning my Common sunflower in different seasons?
Because Common sunflower is an annual plant, the pruning should take place basically during the seasons that the plant grows rapidly. During the growth of the plant, yellowing, drying and spotted leaves are produced, and these spotted and discolored leaves need to be trimmed off.
Read More more
left right
close
care_advanced_guide

Advanced Care Guide

Cultivation:WaterAndHardinessDetail

What is the Ideal Temperature Range for Common sunflower?

Sunflowers were originally native to North America, where it is cold in the winter and hot in the summer, meaning there is a significant annual variation in temperature. Sunflowers like a warm environment. The most suitable temperature for their growth is 18 to 30 ℃, and they can happily grow as long as the temperature is not lower than 10 ℃. Within this suitable temperature range, the higher the temperature is, the faster sunflowers grow.
At different stages of their growth, sunflowers require different amounts of water, although in general they are drought-resistant. However, their soil should not be too moist since waterlogging soil can kill them. During the budding and flowering period, sunflowers should be regularly watered, to ensure better blooming.
Cultivation:WaterAndHardinessDetail
What is the optimal temperature for Common sunflower?
The best temperature for Common sunflower depends on the time of year. There are two primary seasons to discuss for temperature: the growing season, and the dormancy season. During the growing season, once Common sunflower has begun to sprout, the ideal temperature range should be anywhere from 65~80℉(18~27℃). Any colder than 15℉(-10℃), and the plant will suffer; its leaves may brown and wilt, but if this is a short cold snap, then Common sunflower may be able to survive with some help.
During the warmer parts of the year, Common sunflower will need to be similarly protected from temperatures that are too high. 95-105℉ (35-40℃) is the top of this plant’s temperature range, and anything above that will compromise the integrity of the foliage and blooms of Common sunflower. Hotter temperatures can cause wilting, drooping, and even sunburn on the leaves, which can be difficult for Common sunflower to recover from. There are quite a few ways to combat this issue that are quick and easy!
Read More more
Temperature requirements for first year or seedling Common sunflower
If this is the first year of your Common sunflower outside as a new plant, then it may need a little extra tending during the coldest months of the year. Not only can frost more severely damage a first-year Common sunflower, but it can also prevent it from growing back as a healthy plant come spring. This plant needs to be kept at 40℉(5℃) or above when they’re not yet established, which can be done either by bringing your Common sunflower inside for a month or two, or putting up mulch or fabric barriers that protect from frost damage.
It’s also a good idea to plant Common sunflower in a shadier spot during the first year or two, as smaller and weaker plants have a more difficult time maintaining their own temperatures in the heat. First-year Common sunflower should receive no more than five hours of direct sunlight per day, particularly if the ambient daytime temperature gets above 80℉(27℃). Shadecloth and frequent watering or misting are the keys to summer heat control.
Read More more
How can I protect Common sunflower from extreme temperatures?
If cold temperatures (below 15℉(-10℃)) do occur during the growing season, there are a few measures you can take to help protect Common sunflower from frost or cold damage. If you’re growing Common sunflower in a container, then the container can simply be brought inside in bright, indirect light until the temperatures rise up over the lower threshold again. Another option that’s better suited for ground-planted Common sunflower is to use mulch or horticultural fabric to create an insulated barrier around the plant, which will protect the plant from frost and cold wind.
For temperatures that are hotter than 80℉(27℃) in the shade during the day, be careful to only expose Common sunflower to six hours or less of sunlight per day, preferably in the morning hours. Putting up shade cloth, or a fine plastic mesh, can help reduce the amount of direct sunlight that hits the plant during the hottest parts of the day. You can also install a misting system that allows for a slow release of cooling mist around the base of the plant during the day to lower ground temperatures.
Read More more
Dormant season temperature recommendations for Common sunflower
During the cold winter months, Common sunflower needs a certain measure of cold in order to stay in dormancy until it’s time to sprout. Sprouting too early, that is before the danger of the last frost has passed, can be fatal to Common sunflower, especially if it’s already had a head start when the frost hits. Winter temperatures should ideally stay below 32℉(0℃), but if they get up to 40℉(5℃), everything will be just fine.
An unexpected warm spell during the cold months, which can happen in more temperate climates like woodland rainforests, can trigger a premature sprout from Common sunflower. In this case, if there’s still imminent danger of frost, you may want to try covering it with clear plastic on stakes so that the cold has less of a chance of damaging the new sprout. This setup can be removed when the danger of frost has passed. Occasionally, Common sunflower will be able to resprout at the correct time without any help, but this method increases the chances of a successful second sprouting.
Read More more
left right
Cultivation:SoilDetail

What Soil is Best for Common sunflower?

Sunflowers can grow well in all types of soil. However, the soil they most prefer is sandy loam or loamy soil, with a pH of between 5.8 and 6.5. Good soil drainage is crucial for the growth of sunflowers. If sunflowers are planted in the garden, it is recommended that loose and fertile loam is used, which can be mixed with decomposed compost as a base fertilizer. Quick-acting fertilizer can also be added. Soil should be dug over prior to fertilization and sowing to improve soil structure and drainage.
If sunflowers are grown in pots, their soil should be made up of peat, vermiculite, and sand in the ratio 2: 1: 1; organic fertilizers can be mixed in at the same time. Please note that sunflowers should not be continuously planted in the same soil or in soil where other plants of the same family have been planted, otherwise they will grow poorly. It is recommended that the soil is replaced once a year, or that sunflowers are grown in a different area.
Cultivation:SoilDetail
Cultivation:PropagationDetail

How to Propagate Common sunflower?

Sunflowers are usually propagated by sowing seeds. It is a cross-pollinated plant that can be naturally pollinated by insects and bees, although artificial pollination can also be carried out when sunflowers are in bloom, which can improve the seed setting rate and produce more seeds.

Propagation

Only sow Common sunflower seeds in warm weather, preferably during the later weeks of spring after any danger of frost or dropping temperatures has passed. Even in warm climates, ensure the soil is sufficiently warm, as cooler soil can hinder germination and growth. If you want to sow the seeds earlier, you need to do it indoors for successful germination.
To sow Common sunflower in your growing medium, you don't need many extra tools. Simply put on your gardening gloves and get started!
What you will need:
  • Healthy and full seeds, as the germination rate of such seeds will be higher.
  • Growing medium with potting mix soil, divided into rows.
  • Fertilizer or compost.
  • (Optional) A dibbler or stake.
  • A spray bottle to hydrate the soil.
  • (Optional) A piece of plastic film.
Steps:
  1. Prepare the soil: Mix the soil with organic fertilizer. Fully rotted fertilizer is recommended, and its volume should not exceed one quarter of the soil volume when mixing.
  2. Sow the seeds: Sprinkle the seeds onto the soil and cover them afterwards. Alternatively, use a dibbler or stake to pre-dig holes for the seeds, placing about 3 seeds in each mound. The depth of the soil covering the seeds should be about five times the thickness of the seed.
  3. Space the seeds: Leave a 4-6-inch gap between each seed mound.
  4. Water the soil: After planting, water the soil in the container well to provide enough moisture for the seeds to germinate.
  5. Mulch and maintain: Mulch the surface of the container soil to retain moisture and promote seed germination. Use a spray bottle to moisten the soil when it becomes relatively dry. Continue this until the seeds germinate.
Note: Before seeds germinate, they can be kept in a low-light location. However, after germination, it's important to provide adequate light to the plant to prevent excessive growth.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
qrcode
Scan the QR code with your phone camera to download the app
close
Cultivation:PropagationDetail
Cultivation:PlantingDetail

How to Plant Common sunflower?

Sunflowers are generally sown in late winter or spring and will bloom 60 to 70 days after sowing. The seeds should be sown directly into the soil, with spacing between the seeds of at least 12 cm. After sowing, a 2 cm layer of fine soil should be used to cover the seeds. Then, the seeds should be watered before being covered with a layer of mulch.
If sunflowers are sown in seed trays, deep seed trays should be used. First, place the compost into the seed tray, thoroughly water it, and wait for the excess water to drain before sowing. Sow each seed in a hole, cover it with a thin layer of soil, place the tray in a shady place, and wait for the young seedlings to appear.
Once the seedlings appear, ventilate them well, reduce the humidity and temperature, and gradually expose the seedlings to sunlight. Two weeks after sowing, the seedlings will grow to about 5 cm. At this time, the seedlings can be transplanted into a 10 cm pot and cared for until planting out. The optimum soil temperature for planting sunflowers is 15 ℃.
Cultivation:PlantingDetail
Cultivation:HarvestDetail

How to Harvest Common sunflower?

For sunflowers planted to be used for cut flowers, they can be harvested when the outermost ligulate flowers bloom. It is best to harvest them in the early morning when the temperature is low; they should not be harvested at midday or in the afternoon, when the temperature is high. Gardening scissors should be used to cut the inflorescences obliquely at the bottom of the stem; this can increase the area for water absorption.
The cut inflorescences should be placed in a container of clean water as soon as possible to avoid water loss. If the flower cannot be placed into water immediately, the bottom of the stem should be cut again before it is placed in water to ensure sufficient water absorption. The vase life of sunflowers is 6 to 8 days in the summer and 10 to 15 days in the winter.
Cultivation:HarvestDetail
PlantCare:TransplantSummary

How to Transplant Common sunflower?

The ideal season for transplanting common sunflower is from mid to late spring, allowing it to fully benefit from ample sunshine and warmth. Choose a sunny location with adequate space for its growth. Remember to handle common sunflower carefully during transplant to avoid damaging its roots.
PlantCare:TransplantSummary
Cultivation:PottingSuggestions

How to Repot Common sunflower?

Needs excellent drainage in pots.
Cultivation:PottingSuggestions
care_scenes

More Info on Common Sunflower Growth and Care

Basic Care Guide
Common Pests & Diseases
Explore More
Water
Twice per week
Common sunflower, or Helianthus annuus, is native to the arid plains of North America where rainfall is seasonal and unpredictable. Its watering preferences reflect this environment, requiring deep but occasional watering, mimicking rainfall followed by long periods of dryness. Overwatering can lead to soggy soil and plant disease. Therefore, making sure it dries out between waterings and providing well-drained soil can protect common sunflower's roots and promote overall health.
Watering Techniques
Lighting
Full sun
The common sunflower thrives when basked in abundant light for most parts of the day. Even with a decline in light for a few hours, it can still blossom healthily. In its natural, open environment, it is used to an overflow of sunlight. However, too little sunlight tends to cause decreased flowering, while overexposure may cause fading or wilting.
Best Sunlight Practices
Temperature
0 - 38 ℃
Common sunflower is native to temperate environments where temperatures generally range from 68 to 95℉ (20 to 35℃). It thrives best in these warm conditions. Depending on the season, adjusting temperatures to remain within this range may enhance optimal growth.
Temp for Healthy Growth
Transplant
1-2 feet
The ideal season for transplanting common sunflower is from mid to late spring, allowing it to fully benefit from ample sunshine and warmth. Choose a sunny location with adequate space for its growth. Remember to handle common sunflower carefully during transplant to avoid damaging its roots.
Transplant Techniques
Pruning
Spring, Summer, Autumn
A vibrant, towering flora known for its heliotropic head, common sunflower benefits from strategic cutting to boost flower production and health. Prune faded blooms regularly to encourage reblooming. Trim back in early spring and deadhead throughout late fall to maintain shape and vitality. Pruning optimizes growth and energizes the next season's blooms. Precision around timing and technique ensures robust yield and ornamental charm in these garden showpieces.
Pruning techniques
Leaf rot
Leaf rot is a common disease affecting Common sunflower, causing discoloration, wilting, and stunted growth. Caused by various fungi, its severity varies, with potential to significantly reduce flower and seed production. Prevention and control methods are essential.
Learn More About the Disease
Wilting
Wilting is a devastating disease affecting Common sunflower, causing dehydration and eventual death of the plant. Triggered by various pathogens or unfavorable conditions, it disruptively interferes with water transport in plants, weakening, and in severe instances, killing the plants.
Learn More About the Disease
Leaf spot
Leaf Spot is a fungal disease that notably affects Common sunflower, causing discoloration and spots on the leaves, impairing photosynthesis and overall plant health. Prompt action is crucial to prevent the disease from spreading and causing significant loss in sunflower production.
Learn More About the Disease
Caterpillars
Caterpillars, larval stage of Lepidoptera insects, cause significant damage to Common sunflower. They feed on the leaves, flowers, and seed heads, greatly impacting the plant's growth and development, and reducing its aesthetic and commercial value.
Learn More About the Disease
Brown blotch yellow edge
Brown spot is a fungus-caused disease that significantly affects Common sunflower, leading to decreased yield and plant health. The disease, caused by Bipolaris oryzae, manifests as browning and wilting of leaves and stems, particularly in high-humidity conditions.
Learn More About the Disease
Feng shui direction
South
Common sunflower is often considered harmonious when integrated into a Feng Shui setting. Its striking yellow petals and vibrant energy enhance prosperity and abundance. Facing South, this plant may strengthen the energy of recognition and fame, but a balanced arrangement is indispensable in maintaining optimal energy flow.
Fengshui Details
care_seasonal_tips

Seasonal Care Tips

seasonal-tip

Seasonal Precautions

Pay attention to ensure timely watering of sunflowers during the summer, when water tends to rapidly evaporate. In cold areas, it is recommended that sunflowers are kept indoors during the winter.
seasonal-tip
more

Spring

more

Summer

more

Fall

more

Winter

Annuals like this plant require some care in the spring to promote healthy growth and encourage summer blooming.

more
1
Depending on the climate, annuals may require daily watering after spring planting. A good rule to follow is to water whenever the top layer of soil begins drying out.
more
2
Adding fertilizer to the soil will help promote healthy growth. Use a balanced, all-purpose plant food monthly in the spring.
more
3
After sowing the seeds, place any container plants in a sunny location. If planting in the garden, ensure the area receives plenty of sunlight.

This plant and other annuals benefit from some care in the summer.

more
1
Keep the soil consistently moist, especially when rainfall is scarce. When the plant’s leaves begin losing some of the glossy shine, it’s time to water.
more
2
Continue to apply monthly applications of an all-purpose fertilizer.
more
3
Remove any spent blooms to encourage reflowering.
more
4
Ensure the plant is still receiving several hours of sunlight. Container plants may require relocating to another area.
more
5
Keep an eye out for any pests and diseases and remove debris from around the plant’s base.

As long as the plant is growing in the fall:

more
1
Continue to care for your plant by watering, and fertilizing with the all-purpose mixture. These steps will keep your plant moist, shiny, and well-fed. If you'd rather not have your plant spread via seeds, then deadhead those spent blooms.
more
2
Some annuals may benefit from being cut back by 1/4 during the autumn.
more
3
To attempt to propagate more plants during the fall, you can either let your plant go to seed or sow the seeds yourself.
more
4
Depending on the variety, some plants do best in full sun while others need partial shade.

Your plant will only require minimal care during the colder winter months.

more
1
To overwinter your plant best, move it to a pot and bring it indoors, or take a cutting and propagate a new plant. As long as it isn't exposed to colder temperatures, there's a chance that your annual plant can thrive and last until spring, depending on the variety of your plant.
more
2
Make sure you continue providing enough light and occasional water for your overwintering annual to give it the best chance.
care_pet_and_diseases

Common Pests & Diseases

Common issues for Common sunflower based on 10 million real cases
Leaf rot
Leaf rot Leaf rot
Leaf rot
Leaf rot is a common disease affecting Common sunflower, causing discoloration, wilting, and stunted growth. Caused by various fungi, its severity varies, with potential to significantly reduce flower and seed production. Prevention and control methods are essential.
Wilting
Wilting Wilting
Wilting
Wilting is a devastating disease affecting Common sunflower, causing dehydration and eventual death of the plant. Triggered by various pathogens or unfavorable conditions, it disruptively interferes with water transport in plants, weakening, and in severe instances, killing the plants.
Leaf spot
Leaf spot Leaf spot
Leaf spot
Leaf Spot is a fungal disease that notably affects Common sunflower, causing discoloration and spots on the leaves, impairing photosynthesis and overall plant health. Prompt action is crucial to prevent the disease from spreading and causing significant loss in sunflower production.
Caterpillars
Caterpillars Caterpillars
Caterpillars
Caterpillars, larval stage of Lepidoptera insects, cause significant damage to Common sunflower. They feed on the leaves, flowers, and seed heads, greatly impacting the plant's growth and development, and reducing its aesthetic and commercial value.
Brown blotch yellow edge
Brown blotch yellow edge Brown blotch yellow edge
Brown blotch yellow edge
Brown spot is a fungus-caused disease that significantly affects Common sunflower, leading to decreased yield and plant health. The disease, caused by Bipolaris oryzae, manifests as browning and wilting of leaves and stems, particularly in high-humidity conditions.
Leaf beetles
Leaf beetles Leaf beetles
Leaf beetles
Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.
Solutions: For less serious cases: Remove beetles, nymphs, and eggs. Remove all life stages of the beetles and kill them by placing them in a bucket of warm, soapy water. This can be done more easily by placing the bucket under affected leaves and shaking the plant. This method is most effective in the afternoon when leaf beetles are more active. Always dispose of insects in a sealed bag or container to avoid escape and spread. To treat more serious infestations: Apply organic insecticides. Use naturally-derived insecticides before moving on to synthetic insecticides. Neem oil and pyrethrum are naturally-derived insecticides that should be applied following label instructions. Apply synthetic insecticides. Examples of insecticides effective for leaf beetles include carbaryl, permethrin, and bifenthrin. Apply insecticides according to label instructions.
autodiagnose

Treat and prevent plant diseases.

AI-powered plant doctor helps you diagnose plant problems in seconds.
close
plant poor
Leaf rot
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf rot Disease on Common sunflower?
What is Leaf rot Disease on Common sunflower?
Leaf rot is a common disease affecting Common sunflower, causing discoloration, wilting, and stunted growth. Caused by various fungi, its severity varies, with potential to significantly reduce flower and seed production. Prevention and control methods are essential.
Symptom Analysis
Symptom Analysis
Common sunflower affected by leaf rot exhibits yellowing and wilt of leaves, a potential indicator of the disease. In advanced stages, the entire plant might show signs of stunting, darkening of stem base, and rotting roots.
What Causes Leaf rot Disease on Common sunflower?
What Causes Leaf rot Disease on Common sunflower?
1
Fungi
The disease is induced by various fungi, including species of the genera Pythium, Phytophthora, Rhizoctonia, and Fusarium, which proliferate in waterlogged, compacted, and poorly-drained soils.
2
Environment
Wet and humid conditions promote fungal growth and disease manifestation, making control efforts challenging.
How to Treat Leaf rot Disease on Common sunflower?
How to Treat Leaf rot Disease on Common sunflower?
1
Non pesticide
Good drainage: Enhance soil structure to promote drainage and aerate the root zone.

Hygiene: Regularly clean and disinfect tools to restrict disease transmission.
2
Pesticide
Fungicides: Use of approved fungicidal treatments may help control the disease.

Biological agents: Utilize microbiological pest control agents with a specificity for the causing fungi.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
qrcode
Scan the QR code with your phone camera to download the app
plant poor
Wilting
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Wilting Disease on Common sunflower?
What is Wilting Disease on Common sunflower?
Wilting is a devastating disease affecting Common sunflower, causing dehydration and eventual death of the plant. Triggered by various pathogens or unfavorable conditions, it disruptively interferes with water transport in plants, weakening, and in severe instances, killing the plants.
Symptom Analysis
Symptom Analysis
Symptoms prominently manifest as wilting or drooping foliage in Common sunflower, initially intermittent but gradually becoming permanent. Leaf yellowing and necrosis, stunted growth, and in severe cases, plant death are common indicators.
What Causes Wilting Disease on Common sunflower?
What Causes Wilting Disease on Common sunflower?
1
Fungal pathogens
Fungi such as Fusarium and Verticillium are primary culprits.
2
Bacterial pathogens
Specific strains of bacteria like Pseudomonas can induce wilting.
3
Environmental stress
Conditions like drought, high salinity, or extreme temperatures can trigger wilting.
How to Treat Wilting Disease on Common sunflower?
How to Treat Wilting Disease on Common sunflower?
1
Non pesticide
Plant hygiene: Regularly clean and remove affected plants parts to prevent spreading.

Appropriate watering: Overwatering can aggravate fungal growth, avoid waterlogging.
2
Pesticide
Fungicide use: Apply systemic fungicides to control fungal pathogens.

Bactericide use: Specific bactericides can control bacterial wilt.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
qrcode
Scan the QR code with your phone camera to download the app
plant poor
Leaf spot
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf spot Disease on Common sunflower?
What is Leaf spot Disease on Common sunflower?
Leaf Spot is a fungal disease that notably affects Common sunflower, causing discoloration and spots on the leaves, impairing photosynthesis and overall plant health. Prompt action is crucial to prevent the disease from spreading and causing significant loss in sunflower production.
Symptom Analysis
Symptom Analysis
Common sunflower affected by Leaf Spot exhibits circles or irregularly-shaped brown or black spots on leaves. As the disease progresses, there might be premature defoliation and even browning or blackening of the stem.
What Causes Leaf spot Disease on Common sunflower?
What Causes Leaf spot Disease on Common sunflower?
1
Pathogens
Cercospora and Alternaria spp. are the primary fungal pathogens responsible for Leaf Spot disease in Common sunflower.
2
Environmental factors
Wet and humid weather conditions favor spore growth and spread, increasing the disease severity.
How to Treat Leaf spot Disease on Common sunflower?
How to Treat Leaf spot Disease on Common sunflower?
1
Non pesticide
Sanitation: Proper sanitation practices, such as removing infected plant parts or debris around the Common sunflower, can discourage disease spread.

Crop rotation: Planting Common sunflower in a different area of the garden or field each year can break the disease cycle.
2
Pesticide
Fungicides: Regular application of an approved fungicide can act effectively against the pathogens causing Leaf Spot.

Chemical treatment: Treating seeds with a fungicide before planting can prevent early-season disease manifestation.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
qrcode
Scan the QR code with your phone camera to download the app
plant poor
Caterpillars
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Caterpillars Disease on Common sunflower?
What is Caterpillars Disease on Common sunflower?
Caterpillars, larval stage of Lepidoptera insects, cause significant damage to Common sunflower. They feed on the leaves, flowers, and seed heads, greatly impacting the plant's growth and development, and reducing its aesthetic and commercial value.
Symptom Analysis
Symptom Analysis
Key symptoms include extensive foliage loss, visible chewing marks or holes on leaves, flowers, and seed heads. The presence of caterpillars or their excrement on the plant also signals an infestation.
What Causes Caterpillars Disease on Common sunflower?
What Causes Caterpillars Disease on Common sunflower?
1
Caterpillars
Caterpillars are the immature form of moths and butterflies. They have voracious appetites and cause substantial damage by feeding intensively on various parts of Common sunflower.
How to Treat Caterpillars Disease on Common sunflower?
How to Treat Caterpillars Disease on Common sunflower?
1
Non pesticide
Physical removal: Regular inspection and manual removal of caterpillars help to control the infestation.

Use of natural predators: Encouraging caterpillar predators, such as birds, in the garden can reduce the caterpillar population naturally.
2
Pesticide
Insecticides: Insecticides containing Bacillus thuringiensis are effective against caterpillars without harming beneficial insects.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
qrcode
Scan the QR code with your phone camera to download the app
plant poor
Brown blotch yellow edge
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Brown blotch yellow edge Disease on Common sunflower?
What is Brown blotch yellow edge Disease on Common sunflower?
Brown spot is a fungus-caused disease that significantly affects Common sunflower, leading to decreased yield and plant health. The disease, caused by Bipolaris oryzae, manifests as browning and wilting of leaves and stems, particularly in high-humidity conditions.
Symptom Analysis
Symptom Analysis
The Common sunflower's leaves initially develop small, removed, water-soaked spots that enlarge and become gray-brown. In severe cases, the infection spreads to the stems, causing wilting and brown discoloration.
What Causes Brown blotch yellow edge Disease on Common sunflower?
What Causes Brown blotch yellow edge Disease on Common sunflower?
1
Bipolaris oryzae
This is a fungus that infects various plants causing the Brown spot disease. It penetrates the Common sunflower plant through wounds, producing spores which are spread by wind and rain.
How to Treat Brown blotch yellow edge Disease on Common sunflower?
How to Treat Brown blotch yellow edge Disease on Common sunflower?
1
Non pesticide
Plant debris removal: Remove and destroy all plant debris after each season to reduce the fungus's overwintering capacity.

Crop rotation: Rotate the Common sunflower crop with unrelated crops to interrupt the life cycle of the fungus.
2
Pesticide
Fungicide application: Apply recommended fungicides like Propiconazole or Pyraclostrobin to effectively control the spread of the disease.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
qrcode
Scan the QR code with your phone camera to download the app
Leaf beetles
plant poor
Leaf beetles
Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.
Overview
Overview
Leaf beetles range in size from 1.5 mm to 2 cm. Both adult beetles and their larvae eat the leaves of many different types of plants. There are over 35,000 different species of leaf beetles, in a variety of colors including gold, green, yellow-striped, and red striped. Some of these have been mistaken for ladybirds because of their shape and coloring. They can be oval, round, or elongated in shape. These insect pests are most active in spring and summer.
If not controlled, leaf beetles can do a lot of damage to vegetable crops and ornamental plants. They feed on the leaves, flowers, stems, roots, and fruits of different plants. They can fly, which means it's easy for them to move from one plant to another. Some species of leaf beetles only target one specific crop, while others will target many different types of plants. Although a lot of the damage that they cause is cosmetic, an infestation can weaken a plant and leave it prone to other more problematic diseases.
Symptom Analysis
Symptom Analysis
The first signs of a leaf beetles infestation are small visible holes in leaves. Leaves then become discolored and dark beetle droppings can be seen. As the leaves turn yellow and brown, they will drop off the plant onto the ground. Some leaves will appear skeletonized with only the veins still remaining.
Infestation begins in spring, when the adult beetles emerge from the soil and lay their eggs on the leaves of plants. When these eggs hatch, the young nymphs start munching on the leaves as they grow up. Once leaf beetles are large and mature, they'll fall to the ground and pupate in the soil over winter before starting the cycle all over again.
Leaf beetles also eat holes in fruits and vegetables. These can be seen as small round holes that sometimes have a larger brown area surrounding them.
Solutions
Solutions
For less serious cases:
  1. Remove beetles, nymphs, and eggs. Remove all life stages of the beetles and kill them by placing them in a bucket of warm, soapy water. This can be done more easily by placing the bucket under affected leaves and shaking the plant. This method is most effective in the afternoon when leaf beetles are more active. Always dispose of insects in a sealed bag or container to avoid escape and spread.
To treat more serious infestations:
  1. Apply organic insecticides. Use naturally-derived insecticides before moving on to synthetic insecticides. Neem oil and pyrethrum are naturally-derived insecticides that should be applied following label instructions.
  2. Apply synthetic insecticides. Examples of insecticides effective for leaf beetles include carbaryl, permethrin, and bifenthrin. Apply insecticides according to label instructions.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
qrcode
Scan the QR code with your phone camera to download the app
care_more_info

More About Common Sunflower

Plant Type
Plant Type
Herb
Lifespan
Lifespan
Annual
Spread
Spread
30 to 100 cm
Bloom Time
Bloom Time
Summer, Fall
Flower Color
Flower Color
Yellow
Orange
Red
Brown
Leaf Color
Leaf Color
Green
Flower Size
Flower Size
10 to 30 cm
Plant Height
Plant Height
1 to 3 m

Name story

Common sunflower
Generally, most people think that the naming of sunflower is based on the direction of sunrise and sunset. However, this is not the case. Matured sunflower will only face the East and it will not rotate with the direction of the sun. Nevertheless, the misconception of it facing the sun has embedded deeply in people's mind. Hence, it is called common sunflower.

Usages

Artistic Value
The common sunflower is often the subject of music, poetry and paintings. The most famous painting is Van Gogh's Sunflower.
Environmental Protection Value
It can purify the metal content of the soil.
Garden Use
The bright and beautiful common sunflower is a common annual in sunny home gardens. The tall stalks and large sunny blooms make it a beautiful backdrop to many other low-growing flowers in cottage and prairie/meadow gardens. Beans and squash are good veggies to grow with sunflowers, as they help balance the pH in the soil.
plantfinder

Find your perfect green friends.

Plan your green oasis based on your criteria: plant type, pet safety, skill level, sites, and more.
care_faq

Common Problems

Why do the common sunflower leaves turn yellow or wither?

more more
Common sunflower requires plenty of water during hot weather and during their growth period. If they are not watered regularly, their leaves may wilt. On the other hand, if they are overwatered the leaves at the bottom of the plant will turn yellow. If sunflowers are being grown in pots, they should be watered thoroughly each time, until water begins to seep from the bottom of the pot. Make sure to keep the soil moist. Water sunflower plants whenever you feel the soil is dry to the touch or the flowerpot feels light.

Why is my common sunflower slow to bloom or why are the flowers very small?

more more
Insufficient sunlight and fertilizer. Common sunflower requires plenty of sunlight, so it is recommended they are planted in an environment with sufficient sunlight. Ensuring a proper distance between plants helps with ventilation and allows them to receive enough sunlight. Excessive lateral buds on common sunflower should be removed, and fertilizer should be added to promote the growth of the main flower buds and facilitate blooming.

Why has my common sunflower become spindly?

more more
Sunflowers may become spindly and weak if they receive insufficient sunlight, if the temperature is higher than 30 ℃, or if they receive too much water. To avoid spindly growth, attention should be paid to controlling the humidity during planting, making sure sunflowers are watered if the soil becomes dry, and avoiding the accumulation of water in the soil.
care_new_plant

Caring for a New Plant

new-plant
The following pictures and instructions for flower plant are aimed to help your plants adapt and thrive in a new environment.
more
1
Picking a Healthy Flower Plant
check-health

Check Its Health

part-image-bg part-image
Whole Plant
Symmetrical crown, evenly distributed branches, full and compact shape, no excessive growth, close internodes, and uniform leaf size.
part-image-bg part-image
Flowers
Many unopened flower buds are closely attached, without falling off easily when shaken, and show no diseased spots or wilting on the petals.
part-image-bg part-image
Branches
The branches are not withered, and the trunk is free of boreholes or damage.
part-image-bg part-image
Stems
No mold, browning or soft rot at the base of the plant.
part-image-bg part-image
Leaves
Check the inside of the plant, shaded and overlapping areas, back of leaves. Even colour, no yellowing, no brown spots, no crawling insects, no cobwebs, no deformities, no wilting.
health-trouble

Health Troubleshooting

Whole Plant
trouble-image
more 1 Asymmetrical crown or missing, uneven branching: prune the weak and slender branches of the larger portion of the asymmetrical crown, then trim the overgrown larger branches.
trouble-image
more 2 Internodes are longer in the upper part, leaves are sparse and smaller on top: increase light intensity or duration.
Branches
trouble-image
more 1 Dry branches: check if the branch is still alive by peeling back a small section of bark and trim away any dry branches. Watch out for signs of insect infestation inside the branch.
trouble-image
more 2 Bark with holes: inject insecticide into the holes and apply systemic insecticide to the roots.
trouble-image
more 3 Damaged bark: brush on a wound-healing agent, and avoid getting it wet.
Stems
trouble-image
Mildew, browning, or soft rot at the base: place the plant in a ventilated, dry environment and water with fungicide.
Flowers
trouble-image
more 1 Many flowers have already bloomed: lower the temperature in the environment to extend the flowering period. Prune any dying flowers in a timely manner to prevent nutrient depletion.
trouble-image
more 2 Flower bud dropping: keep temperature at 15-25℃, place in bright but shaded area, water frequently, and avoid fertilizing.
trouble-image
more 3 Flower petals have spots or disease: avoid spraying water directly onto the petals.
trouble-image
more 4 Flower wilting: avoid soil that is too wet or too dry. When touching the soil with your finger, it should feel moist but not leave any water traces on your finger.
Leaves
trouble-image
more 1 Uneven leaf color and yellowing: prune yellow leaves and check if there are signs of rot at the base of the plant. Spray with fungicide for severe cases.
trouble-image
more 2 Brown spots or small yellow spots: place the plant in a ventilated area and avoid watering the leaves. Spray with fungicide for severe cases.
trouble-image
more 3 Tiny crawling insects on the back of leaves or spider webs between leaves: increase light exposure and spray with insecticide for severe cases.
trouble-image
more 4 Deformations or missing parts on leaves: determine if it's physical damage or pest infestation. Linear or tearing damage is physical, while the rest are pests. Spray with insecticide.
trouble-image
more 5 Wilting leaves: provide partial shade and avoid excessive sun exposure. Remove 1/3 to 1/2 of the leaves for severe cases.
autodiagnose

Treat and prevent plant diseases.

AI-powered plant doctor helps you diagnose plant problems in seconds.
check-condition

Check Its Growing Conditions

check
Soil Check
Soil should smell fresh like after a rain and no musty odor.
check
Light Check
Check the light requirement of the plant and if it match with planting location.
check
Ventilation Check
Ensure good ventilation.
check
Temperature Check
Ensure outdoor temperature is suitable for plants.
condition-trouble

Condition Troubleshooting

check
Soil
Potting mix soil, Peat moss mix soil
Soil smells musty or foul: check the root system for decay, place the plant in a ventilated, dry environment, and water with fungicide.
check
Ideal Temperature
-10℃ to 35℃
Temperature is too low: Temporarily move the plants indoors and then to outdoors when temperature is suitable.
check
Ventilation
Well Ventilated
Non-ventilated environment: can lead to root rot, diseases, and flower drop. Place the plants in an airy location avoiding dead spots.
check
Suitable Light
Full sun, Partial sun
Insufficient light: reduce light appropriately during flowering period but not a fully shaded environment. After flowering, move to normal cultivation environment. For plants with long flowering and fruiting periods, provide normal light to avoid shortening.
Transplant recovery: After transplanting, pot plants should be temporarily shaded, then moved to normal light after a week if no abnormal drop or wilting. In-ground plants, shade for a week and then transfer to normal light or just pay attention to watering.
more
2
Adapting Your New Flower Plant
Step 1
condition-image
Repotting
Potted plants - Wait until flowering stage is over before changing pots. In-ground plants - Plant directly taking care not to harm root system or remove soil.
show more show-more
Step 2
condition-image
Pruning
Prune residual flowers, yellow/dead leaves. No other pruning at this time.
show more show-more
Step 3
condition-image
Watering
Water appropriately. Water more frequently for newly transplanted or purchased plants to keep the soil consistently moist for at least 2 weeks. Avoid overwatering, do not water when there is water on your finger after touching the soil. Both underwatering and overwatering can cause plants to drop their flowers or fruit.
show more show-more
Step 4
condition-image
Fertilizing
Don't fertilize just after purchase. Fertilize after 2 weeks using half concentration.
show more show-more
lightmeter

Know the light your plants really get.

Find the best spots for them to optimize their health, simply using your phone.
label
main-image
Common Sunflower
label-image
Repotting
Repotting potted plants: Wait until flowering ends. Repotting in-ground plants: Be careful not to harm roots/soil.
label-image
Pruning
Prune residual flowers, and yellow/dead leaves. No other pruning at this time.
label-image
Watering
Water new plants more often for 2 weeks. Avoid over/under watering by checking the soil.
label-image
Fertilizing
Don't fertilize just after purchase. Fertilize after 2 weeks using half concentration.
label-image
Sunlight
Long flowering plants need normal light. Shade transplants for a week, then move to normal light.
label
main-image
Common Sunflower
label-image
Repotting
Repotting potted plants: Wait until flowering ends. Repotting in-ground plants: Be careful not to harm roots/soil.
label-image
Pruning
Prune residual flowers, and yellow/dead leaves. No other pruning at this time.
label-image
Watering
Water new plants more often for 2 weeks. Avoid over/under watering by checking the soil.
label-image
Fertilizing
Don't fertilize just after purchase. Fertilize after 2 weeks using half concentration.
label-image
Sunlight
Long flowering plants need normal light. Shade transplants for a week, then move to normal light.
plant

Botanist in your pocket

plant
plant

App

plant
close
product icon
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
Your Ultimate Guide to Plants
Identify grow and nurture the better way!
product icon
17,000 local species +400,000 global species studied
product icon
Nearly 5 years of research
product icon
80+ scholars in botany and gardening
ad
ad
Botanist in your pocket
Scan the QR code with your phone camera to download the app
close
title
Botanist in your pocket
qrcode
Scan QR code to download
About
Basic Care
Advanced Care
More About How-Tos
Seasonal Tips
Pests & Diseases
More Info
FAQ
New Plant Care
Common sunflower play
Common sunflower
video play
Common sunflower
Common sunflower
Common sunflower

How to Care for Common Sunflower

The common sunflower is recognizable for its bright flower on a very tall stem. It is often grown in gardens. These flowers have been important in culture: they were worshipped by the ancient Inca people, and today, they represent eco-friendly movements. The artist Vincent van Gogh made a famous series of paintings about common sunflower. Wild versions of the plant branch out to many flower heads, but domesticated plants typically only have one.
symbolism

Symbolism

Silent love, admiration, loyalty, long life, good fortune
Water
Twice per week
Water Water detail
Sunlight
Full sun
Sunlight Sunlight detail
care_basic_guide

Basic Care Guide

Cultivation:WaterDetail

How to Water Common sunflower?

Cultivation:WaterDetail
Sunflowers have different water requirements at different stages of growth. The soil must be moist during sowing and transplanting. The plants need sufficient water, especially during the seedling stage. After that, the soil should be kept moist but not excessively wet. Some drought is beneficial for root growth and to develop a plant’s drought tolerance. In the summer, when the temperature increases and water evaporates more rapidly, the amount of water supplied can be increased as necessary to prevent wilting, which can affect the growth of the plants.
The time from the emergence of flower buds to blooming is the peak period of water demand in sunflowers. During this time, there should not be a lack of water; if the soil becomes too dry, it should be watered. When sunflowers are grown in pots, the plants are often large while the flower pots are small, and there may be just a little soil and insufficient water. Therefore, timely watering is required during the growth period; otherwise, the leaves tend to loss water and wither. The soil should not be too wet, however, otherwise the leaves at the base of the plant tend to turn yellow.
waterreminders

Never miss a care task again!

Plant care made easier than ever with our tailor-made smart care reminder.
What is the best way to water my Common sunflower?
more
What should I do if I water my Common sunflower too much or too little?
more
How often should I water my Common sunflower?
more
How much water does my Common sunflower need?
more
Show More more
Cultivation:FertilizerDetail

How to Fertilize Common sunflower?

Cultivation:FertilizerDetail
When sunflowers are grown in pots, liquid fertilizer or compound fertilizer should be applied once every 7 to 10 days. During the growth of seedlings, nitrogen fertilizer should be applied to promote the luxuriant growth of stems and leaves. When budding begins, more phosphate-potassium fertilizer should be applied, which will provide sufficient nutrients to promote robust growth of the buds and facilitate blooming.
If sunflowers are planted in the garden, no fertilizer is required if the soil is already fertile. However, if the soil is relatively poor, nitrogen fertilizer should be applied during the early stages of growth and phosphorus and potassium fertilizers should be applied during the late stages, similar to that carried out for potted plants. They can be fertilized once every 20 days during the growth period, with an additional two or three applications of thin phosphate-potassium fertilizer provided before blooming.
close

Fertilizer

Common sunflower, a bright and cheerful annual or perennial as cool-weather annuals(tender perennial but is most often grown as an annual), is a welcome sign of gardening season to most. When it makes its first appearance in the stores and nurseries for the year, folks get right to work planning out their gardens to include Common sunflower amongst their favorites.
Plants need nutrients to survive; most gardeners, regardless of experience, are well aware of this factor. However, without food, Common sunflower will die out soon after the first pollination. Therefore, providing the right type of nutrients in the right amounts is the best way to keep Common sunflower going throughout the blooming season and producing large, beautiful flowers. Fertilizer also helps Common sunflower build a large, healthy root system. This plant needs all the help it can get since its root system is very thin and easily damaged. Fertilizing at planting helps Common sunflower build a solid root structure that not only provides stability to the plant, but also sets the stage for a sensational flowering performance. When timed correctly, fertilization can greatly extend Common sunflower's flowering period.
Common sunflower puts on tremendous growth early in the growing season, once the danger of the last frost has passed. It’s during this time that Common sunflower should be fertilized; more specifically, during planting. The idea is to apply when the plant is first planted in the ground or in planters; however you choose to plant it. This will be the only dose of fertilizer until later in the year, when blooms are in full force.Once the season is in full swing and Common sunflower has opened most of its blooms at full size, it’s time to start fertilizing again. Around the time when blooms are at peak output, begin fertilizing again once every three to four weeks, as weather permits. Then, after Common sunflower starts to put out fewer new blooms, stop fertilizing; there’s no need to fertilize when the plant can’t produce any more blooms.
Most types of Common sunflower need the same general balance of nutrients from fertilizer. These should come in the form of a fertilizer that’s formulated specifically for high-yield blooming plants. A fertilizer with a higher level of phosphorus is the best option. This type of fertilizer has a higher P number in its NPK number, for example 10-30-10.Several fertilizer brands sell a fertilizer that’s perfect for blooming plants like Common sunflower, which are an easy and fuss-free way to provide the right nutrients. If you do choose to use a pre-mixed fertilizer, follow the directions on the package to prevent Common sunflower from getting too much or too little fertilizer, both of which can cause the plant to grow poorly or even wilt entirely.Depending on the type of fertilizer you have, specific fertilizing instructions may vary. However, there are a few general tips for applying most types of fertilizer to Common sunflower. The first fertilizer application, which should be when you first plant Common sunflower, will likely consist of mixing the recommended amount of fertilizer into the soil before planting and watering in the Common sunflower. Subsequent fertilizing may look a little different. For pellet fertilizers, simply mix the pellets into the top inch of soil around the outer edge of the plant, where the roots are. Water them in very well at first, then water regularly after that. Other fertilizers may be mixed into a watering can and applied just like a regular watering. Follow any instructions on fertilizer packaging for consistency, but if you’d rather keep things on a regular schedule, shoot for every three to four weeks.
Over-fertilizing is a very easy mistake to make for first-time gardeners, or even for experienced gardeners trying out a new product. Fortunately, Common sunflower makes this issue known very well by displaying several signs of distress. You may notice that its leaves are yellowing quickly, the foliage may wilt, or new blooms may be under-developed. These are all clear signs of too much food.When you fertilize Common sunflower too frequently, you create uninhabitable soil conditions. Soil may become too hot, which is a term used to describe when soil is too saturated with minerals, nutrients, or compost, and ends up burning the roots of anything planted in it. It’s a good idea to flush out the soil well once a month or so, just by watering twice as much as normal with good drainage.
While regular fertilizing is important for Common sunflower, it absolutely can be applied at the wrong time. Some situations call for holding back the fertilizer once in a while. These are usually climate related, but they also include a variety of controllable factors. Essentially, when something is wrong with the plant, the soil, or the climate, wait it out until things have been smoothed over and the plant has recovered.An example of when not to fertilize is if there are severe or unexpected changes in the weather. If a cold nap suddenly comes in the middle of summer, wait until it’s warm again to start fertilizing. The same stands for if the soil becomes too dry or too packed to absorb anything. At this point, fertilizer will be going straight to the roots, rather than being diffused by soil before it reaches them. As you can imagine, the roots of Common sunflower aren’t very fond of that.When temperatures soar during the hottest parts of the day into the 90-degree fahrenheit range, don’t apply fertilizer. Since fertilizer can be broken down at various speeds depending on temperature, it’s especially important not to allow hot temperatures to break it down too quickly. Pests or diseases should also be treated and cleared up before re-fertilizing.
Show More
more
Unlock complete care guides for 10,000+ species
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
Why do I need to fertilize my Common sunflower?
more
When is the best time to fertilize my Common sunflower?
more
When should I avoid fertilizing my Common sunflower?
more
What type of fertilizer does my Common sunflower need?
more
Show More more
Cultivation:SunlightDetail

What Are the Sunlight Requirements for Common sunflower?

Cultivation:SunlightDetail
The seedlings, leaves, and flower heads of sunflowers all exhibit very strong phototropism. Sufficient sunlight will make the seedlings grow strongly and healthily. During the middle period of their growth stage, sufficient sunlight can promote the growth of stems and leaves and the differentiation of flower buds. If sunflowers receive sufficient sunlight during their entire growth period, the stems and leaves grow healthily and the flowers are vivid and bright. However, if there is continuous rain or they are grown for a long time in a partially shady spot they may grow poorly and become weak. The stems will not be straight, the leaves will be soft and droop in yellow green, and the flower head will be small and irregular.
lightmeter

Know the light your plants really get.

Find the best spots for them to optimize their health, simply using your phone.
How much sunlight should Common sunflower get per day to grow healthily?
more
What type of sunlight does Common sunflower need?
more
Can sunlight hurt plants? How to protect Common sunflower from sun and heat damage?
more
Should I protect Common sunflower from sun exposure?
more
Show More more
Cultivation:PruningDetail

How to Prune Common sunflower?

Cultivation:PruningDetail
To ensure the robust growth of the main stem, the lateral buds of sunflowers should be removed so as not to distribute nutrients too widely and affect the growth of flowers on the main stem. If planted in a border, the top bud of the main stem can be picked off, so that branching occurs to give 4-5 blooms and the plant remains quite short and bushy. For sunflowers planted to provide cut flowers, the apical bud should be removed to facilitate the growth of lateral stems. After such treatment, several stems will be produced, and 7-10 flowers can be harvested from one plant. For sunflowers grown in pots, it is recommended to keep the primary stem and remove the lateral buds, since in this case it is better to have just one flower.
Is pruning necessary for my Common sunflower?
more
How do I prune my Common sunflower?
more
Are there any cautions I should be careful with when pruning my Common sunflower?
more
Are there any tips for pruning my Common sunflower?
more
Show More more
close
care_advanced_guide

Advanced Care Guide

Cultivation:WaterAndHardinessDetail

What is the Ideal Temperature Range for Common sunflower?

Cultivation:WaterAndHardinessDetail
Sunflowers were originally native to North America, where it is cold in the winter and hot in the summer, meaning there is a significant annual variation in temperature. Sunflowers like a warm environment. The most suitable temperature for their growth is 18 to 30 ℃, and they can happily grow as long as the temperature is not lower than 10 ℃. Within this suitable temperature range, the higher the temperature is, the faster sunflowers grow.
At different stages of their growth, sunflowers require different amounts of water, although in general they are drought-resistant. However, their soil should not be too moist since waterlogging soil can kill them. During the budding and flowering period, sunflowers should be regularly watered, to ensure better blooming.
What is the optimal temperature for Common sunflower?
more
Temperature requirements for first year or seedling Common sunflower
more
How can I protect Common sunflower from extreme temperatures?
more
Dormant season temperature recommendations for Common sunflower
more
Show More more
Cultivation:SoilDetail

What Soil is Best for Common sunflower?

Cultivation:SoilDetail
Sunflowers can grow well in all types of soil. However, the soil they most prefer is sandy loam or loamy soil, with a pH of between 5.8 and 6.5. Good soil drainage is crucial for the growth of sunflowers. If sunflowers are planted in the garden, it is recommended that loose and fertile loam is used, which can be mixed with decomposed compost as a base fertilizer. Quick-acting fertilizer can also be added. Soil should be dug over prior to fertilization and sowing to improve soil structure and drainage.
If sunflowers are grown in pots, their soil should be made up of peat, vermiculite, and sand in the ratio 2: 1: 1; organic fertilizers can be mixed in at the same time. Please note that sunflowers should not be continuously planted in the same soil or in soil where other plants of the same family have been planted, otherwise they will grow poorly. It is recommended that the soil is replaced once a year, or that sunflowers are grown in a different area.
Cultivation:PropagationDetail

How to Propagate Common sunflower?

Cultivation:PropagationDetail
Sunflowers are usually propagated by sowing seeds. It is a cross-pollinated plant that can be naturally pollinated by insects and bees, although artificial pollination can also be carried out when sunflowers are in bloom, which can improve the seed setting rate and produce more seeds.
close

Propagation

Only sow Common sunflower seeds in warm weather, preferably during the later weeks of spring after any danger of frost or dropping temperatures has passed. Even in warm climates, ensure the soil is sufficiently warm, as cooler soil can hinder germination and growth. If you want to sow the seeds earlier, you need to do it indoors for successful germination.
To sow Common sunflower in your growing medium, you don't need many extra tools. Simply put on your gardening gloves and get started!
What you will need:
  • Healthy and full seeds, as the germination rate of such seeds will be higher.
  • Growing medium with potting mix soil, divided into rows.
  • Fertilizer or compost.
  • (Optional) A dibbler or stake.
  • A spray bottle to hydrate the soil.
  • (Optional) A piece of plastic film.
Steps:
  1. Prepare the soil: Mix the soil with organic fertilizer. Fully rotted fertilizer is recommended, and its volume should not exceed one quarter of the soil volume when mixing.
  2. Sow the seeds: Sprinkle the seeds onto the soil and cover them afterwards. Alternatively, use a dibbler or stake to pre-dig holes for the seeds, placing about 3 seeds in each mound. The depth of the soil covering the seeds should be about five times the thickness of the seed.
  3. Space the seeds: Leave a 4-6-inch gap between each seed mound.
  4. Water the soil: After planting, water the soil in the container well to provide enough moisture for the seeds to germinate.
  5. Mulch and maintain: Mulch the surface of the container soil to retain moisture and promote seed germination. Use a spray bottle to moisten the soil when it becomes relatively dry. Continue this until the seeds germinate.
Note: Before seeds germinate, they can be kept in a low-light location. However, after germination, it's important to provide adequate light to the plant to prevent excessive growth.
Show More
more
Unlock complete care guides for 10,000+ species
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
Cultivation:PlantingDetail

How to Plant Common sunflower?

Cultivation:PlantingDetail
Sunflowers are generally sown in late winter or spring and will bloom 60 to 70 days after sowing. The seeds should be sown directly into the soil, with spacing between the seeds of at least 12 cm. After sowing, a 2 cm layer of fine soil should be used to cover the seeds. Then, the seeds should be watered before being covered with a layer of mulch.
If sunflowers are sown in seed trays, deep seed trays should be used. First, place the compost into the seed tray, thoroughly water it, and wait for the excess water to drain before sowing. Sow each seed in a hole, cover it with a thin layer of soil, place the tray in a shady place, and wait for the young seedlings to appear.
Once the seedlings appear, ventilate them well, reduce the humidity and temperature, and gradually expose the seedlings to sunlight. Two weeks after sowing, the seedlings will grow to about 5 cm. At this time, the seedlings can be transplanted into a 10 cm pot and cared for until planting out. The optimum soil temperature for planting sunflowers is 15 ℃.
Cultivation:HarvestDetail

How to Harvest Common sunflower?

Cultivation:HarvestDetail
For sunflowers planted to be used for cut flowers, they can be harvested when the outermost ligulate flowers bloom. It is best to harvest them in the early morning when the temperature is low; they should not be harvested at midday or in the afternoon, when the temperature is high. Gardening scissors should be used to cut the inflorescences obliquely at the bottom of the stem; this can increase the area for water absorption.
The cut inflorescences should be placed in a container of clean water as soon as possible to avoid water loss. If the flower cannot be placed into water immediately, the bottom of the stem should be cut again before it is placed in water to ensure sufficient water absorption. The vase life of sunflowers is 6 to 8 days in the summer and 10 to 15 days in the winter.
PlantCare:TransplantSummary

How to Transplant Common sunflower?

PlantCare:TransplantSummary
The ideal season for transplanting common sunflower is from mid to late spring, allowing it to fully benefit from ample sunshine and warmth. Choose a sunny location with adequate space for its growth. Remember to handle common sunflower carefully during transplant to avoid damaging its roots.
Cultivation:PottingSuggestions

How to Repot Common sunflower?

Cultivation:PottingSuggestions
Needs excellent drainage in pots.
care_seasonal_tips

Seasonal Care Tips

seasonal-tip

Seasonal Precautions

Pay attention to ensure timely watering of sunflowers during the summer, when water tends to rapidly evaporate. In cold areas, it is recommended that sunflowers are kept indoors during the winter.
more

Spring

more

Summer

more

Fall

more

Winter

Annuals like this plant require some care in the spring to promote healthy growth and encourage summer blooming.

more
1
Depending on the climate, annuals may require daily watering after spring planting. A good rule to follow is to water whenever the top layer of soil begins drying out.
more
2
Adding fertilizer to the soil will help promote healthy growth. Use a balanced, all-purpose plant food monthly in the spring.
more
3
After sowing the seeds, place any container plants in a sunny location. If planting in the garden, ensure the area receives plenty of sunlight.

This plant and other annuals benefit from some care in the summer.

more
1
Keep the soil consistently moist, especially when rainfall is scarce. When the plant’s leaves begin losing some of the glossy shine, it’s time to water.
more
2
Continue to apply monthly applications of an all-purpose fertilizer.
more
3
Remove any spent blooms to encourage reflowering.
more
4
Ensure the plant is still receiving several hours of sunlight. Container plants may require relocating to another area.
more
5
Keep an eye out for any pests and diseases and remove debris from around the plant’s base.

As long as the plant is growing in the fall:

more
1
Continue to care for your plant by watering, and fertilizing with the all-purpose mixture. These steps will keep your plant moist, shiny, and well-fed. If you'd rather not have your plant spread via seeds, then deadhead those spent blooms.
more
2
Some annuals may benefit from being cut back by 1/4 during the autumn.
more
3
To attempt to propagate more plants during the fall, you can either let your plant go to seed or sow the seeds yourself.
more
4
Depending on the variety, some plants do best in full sun while others need partial shade.

Your plant will only require minimal care during the colder winter months.

more
1
To overwinter your plant best, move it to a pot and bring it indoors, or take a cutting and propagate a new plant. As long as it isn't exposed to colder temperatures, there's a chance that your annual plant can thrive and last until spring, depending on the variety of your plant.
more
2
Make sure you continue providing enough light and occasional water for your overwintering annual to give it the best chance.
care_pet_and_diseases

Common Pests & Diseases

Common issues for Common sunflower based on 10 million real cases
Leaf rot
Leaf rot Leaf rot Leaf rot
Leaf rot is a common disease affecting Common sunflower, causing discoloration, wilting, and stunted growth. Caused by various fungi, its severity varies, with potential to significantly reduce flower and seed production. Prevention and control methods are essential.
Learn More About the Leaf rot more
Wilting
Wilting Wilting Wilting
Wilting is a devastating disease affecting Common sunflower, causing dehydration and eventual death of the plant. Triggered by various pathogens or unfavorable conditions, it disruptively interferes with water transport in plants, weakening, and in severe instances, killing the plants.
Learn More About the Wilting more
Leaf spot
Leaf spot Leaf spot Leaf spot
Leaf Spot is a fungal disease that notably affects Common sunflower, causing discoloration and spots on the leaves, impairing photosynthesis and overall plant health. Prompt action is crucial to prevent the disease from spreading and causing significant loss in sunflower production.
Learn More About the Leaf spot more
Caterpillars
Caterpillars Caterpillars Caterpillars
Caterpillars, larval stage of Lepidoptera insects, cause significant damage to Common sunflower. They feed on the leaves, flowers, and seed heads, greatly impacting the plant's growth and development, and reducing its aesthetic and commercial value.
Learn More About the Caterpillars more
Brown blotch yellow edge
Brown blotch yellow edge Brown blotch yellow edge Brown blotch yellow edge
Brown spot is a fungus-caused disease that significantly affects Common sunflower, leading to decreased yield and plant health. The disease, caused by Bipolaris oryzae, manifests as browning and wilting of leaves and stems, particularly in high-humidity conditions.
Learn More About the Brown blotch yellow edge more
Leaf beetles
Leaf beetles Leaf beetles Leaf beetles
Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.
Solutions: For less serious cases: Remove beetles, nymphs, and eggs. Remove all life stages of the beetles and kill them by placing them in a bucket of warm, soapy water. This can be done more easily by placing the bucket under affected leaves and shaking the plant. This method is most effective in the afternoon when leaf beetles are more active. Always dispose of insects in a sealed bag or container to avoid escape and spread. To treat more serious infestations: Apply organic insecticides. Use naturally-derived insecticides before moving on to synthetic insecticides. Neem oil and pyrethrum are naturally-derived insecticides that should be applied following label instructions. Apply synthetic insecticides. Examples of insecticides effective for leaf beetles include carbaryl, permethrin, and bifenthrin. Apply insecticides according to label instructions.
Learn More About the Leaf beetles more
autodiagnose

Treat and prevent plant diseases.

AI-powered plant doctor helps you diagnose plant problems in seconds.
close
plant poor
Leaf rot
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf rot Disease on Common sunflower?
What is Leaf rot Disease on Common sunflower?
Leaf rot is a common disease affecting Common sunflower, causing discoloration, wilting, and stunted growth. Caused by various fungi, its severity varies, with potential to significantly reduce flower and seed production. Prevention and control methods are essential.
Symptom Analysis
Symptom Analysis
Common sunflower affected by leaf rot exhibits yellowing and wilt of leaves, a potential indicator of the disease. In advanced stages, the entire plant might show signs of stunting, darkening of stem base, and rotting roots.
What Causes Leaf rot Disease on Common sunflower?
What Causes Leaf rot Disease on Common sunflower?
1
Fungi
The disease is induced by various fungi, including species of the genera Pythium, Phytophthora, Rhizoctonia, and Fusarium, which proliferate in waterlogged, compacted, and poorly-drained soils.
2
Environment
Wet and humid conditions promote fungal growth and disease manifestation, making control efforts challenging.
How to Treat Leaf rot Disease on Common sunflower?
How to Treat Leaf rot Disease on Common sunflower?
1
Non pesticide
Good drainage: Enhance soil structure to promote drainage and aerate the root zone.

Hygiene: Regularly clean and disinfect tools to restrict disease transmission.
2
Pesticide
Fungicides: Use of approved fungicidal treatments may help control the disease.

Biological agents: Utilize microbiological pest control agents with a specificity for the causing fungi.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
close
plant poor
Wilting
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Wilting Disease on Common sunflower?
What is Wilting Disease on Common sunflower?
Wilting is a devastating disease affecting Common sunflower, causing dehydration and eventual death of the plant. Triggered by various pathogens or unfavorable conditions, it disruptively interferes with water transport in plants, weakening, and in severe instances, killing the plants.
Symptom Analysis
Symptom Analysis
Symptoms prominently manifest as wilting or drooping foliage in Common sunflower, initially intermittent but gradually becoming permanent. Leaf yellowing and necrosis, stunted growth, and in severe cases, plant death are common indicators.
What Causes Wilting Disease on Common sunflower?
What Causes Wilting Disease on Common sunflower?
1
Fungal pathogens
Fungi such as Fusarium and Verticillium are primary culprits.
2
Bacterial pathogens
Specific strains of bacteria like Pseudomonas can induce wilting.
3
Environmental stress
Conditions like drought, high salinity, or extreme temperatures can trigger wilting.
How to Treat Wilting Disease on Common sunflower?
How to Treat Wilting Disease on Common sunflower?
1
Non pesticide
Plant hygiene: Regularly clean and remove affected plants parts to prevent spreading.

Appropriate watering: Overwatering can aggravate fungal growth, avoid waterlogging.
2
Pesticide
Fungicide use: Apply systemic fungicides to control fungal pathogens.

Bactericide use: Specific bactericides can control bacterial wilt.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
close
plant poor
Leaf spot
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf spot Disease on Common sunflower?
What is Leaf spot Disease on Common sunflower?
Leaf Spot is a fungal disease that notably affects Common sunflower, causing discoloration and spots on the leaves, impairing photosynthesis and overall plant health. Prompt action is crucial to prevent the disease from spreading and causing significant loss in sunflower production.
Symptom Analysis
Symptom Analysis
Common sunflower affected by Leaf Spot exhibits circles or irregularly-shaped brown or black spots on leaves. As the disease progresses, there might be premature defoliation and even browning or blackening of the stem.
What Causes Leaf spot Disease on Common sunflower?
What Causes Leaf spot Disease on Common sunflower?
1
Pathogens
Cercospora and Alternaria spp. are the primary fungal pathogens responsible for Leaf Spot disease in Common sunflower.
2
Environmental factors
Wet and humid weather conditions favor spore growth and spread, increasing the disease severity.
How to Treat Leaf spot Disease on Common sunflower?
How to Treat Leaf spot Disease on Common sunflower?
1
Non pesticide
Sanitation: Proper sanitation practices, such as removing infected plant parts or debris around the Common sunflower, can discourage disease spread.

Crop rotation: Planting Common sunflower in a different area of the garden or field each year can break the disease cycle.
2
Pesticide
Fungicides: Regular application of an approved fungicide can act effectively against the pathogens causing Leaf Spot.

Chemical treatment: Treating seeds with a fungicide before planting can prevent early-season disease manifestation.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
close
plant poor
Caterpillars
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Caterpillars Disease on Common sunflower?
What is Caterpillars Disease on Common sunflower?
Caterpillars, larval stage of Lepidoptera insects, cause significant damage to Common sunflower. They feed on the leaves, flowers, and seed heads, greatly impacting the plant's growth and development, and reducing its aesthetic and commercial value.
Symptom Analysis
Symptom Analysis
Key symptoms include extensive foliage loss, visible chewing marks or holes on leaves, flowers, and seed heads. The presence of caterpillars or their excrement on the plant also signals an infestation.
What Causes Caterpillars Disease on Common sunflower?
What Causes Caterpillars Disease on Common sunflower?
1
Caterpillars
Caterpillars are the immature form of moths and butterflies. They have voracious appetites and cause substantial damage by feeding intensively on various parts of Common sunflower.
How to Treat Caterpillars Disease on Common sunflower?
How to Treat Caterpillars Disease on Common sunflower?
1
Non pesticide
Physical removal: Regular inspection and manual removal of caterpillars help to control the infestation.

Use of natural predators: Encouraging caterpillar predators, such as birds, in the garden can reduce the caterpillar population naturally.
2
Pesticide
Insecticides: Insecticides containing Bacillus thuringiensis are effective against caterpillars without harming beneficial insects.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
close
plant poor
Brown blotch yellow edge
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Brown blotch yellow edge Disease on Common sunflower?
What is Brown blotch yellow edge Disease on Common sunflower?
Brown spot is a fungus-caused disease that significantly affects Common sunflower, leading to decreased yield and plant health. The disease, caused by Bipolaris oryzae, manifests as browning and wilting of leaves and stems, particularly in high-humidity conditions.
Symptom Analysis
Symptom Analysis
The Common sunflower's leaves initially develop small, removed, water-soaked spots that enlarge and become gray-brown. In severe cases, the infection spreads to the stems, causing wilting and brown discoloration.
What Causes Brown blotch yellow edge Disease on Common sunflower?
What Causes Brown blotch yellow edge Disease on Common sunflower?
1
Bipolaris oryzae
This is a fungus that infects various plants causing the Brown spot disease. It penetrates the Common sunflower plant through wounds, producing spores which are spread by wind and rain.
How to Treat Brown blotch yellow edge Disease on Common sunflower?
How to Treat Brown blotch yellow edge Disease on Common sunflower?
1
Non pesticide
Plant debris removal: Remove and destroy all plant debris after each season to reduce the fungus's overwintering capacity.

Crop rotation: Rotate the Common sunflower crop with unrelated crops to interrupt the life cycle of the fungus.
2
Pesticide
Fungicide application: Apply recommended fungicides like Propiconazole or Pyraclostrobin to effectively control the spread of the disease.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
close
Leaf beetles
plant poor
Leaf beetles
Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.
Overview
Overview
Leaf beetles range in size from 1.5 mm to 2 cm. Both adult beetles and their larvae eat the leaves of many different types of plants. There are over 35,000 different species of leaf beetles, in a variety of colors including gold, green, yellow-striped, and red striped. Some of these have been mistaken for ladybirds because of their shape and coloring. They can be oval, round, or elongated in shape. These insect pests are most active in spring and summer.
If not controlled, leaf beetles can do a lot of damage to vegetable crops and ornamental plants. They feed on the leaves, flowers, stems, roots, and fruits of different plants. They can fly, which means it's easy for them to move from one plant to another. Some species of leaf beetles only target one specific crop, while others will target many different types of plants. Although a lot of the damage that they cause is cosmetic, an infestation can weaken a plant and leave it prone to other more problematic diseases.
Symptom Analysis
Symptom Analysis
The first signs of a leaf beetles infestation are small visible holes in leaves. Leaves then become discolored and dark beetle droppings can be seen. As the leaves turn yellow and brown, they will drop off the plant onto the ground. Some leaves will appear skeletonized with only the veins still remaining.
Infestation begins in spring, when the adult beetles emerge from the soil and lay their eggs on the leaves of plants. When these eggs hatch, the young nymphs start munching on the leaves as they grow up. Once leaf beetles are large and mature, they'll fall to the ground and pupate in the soil over winter before starting the cycle all over again.
Leaf beetles also eat holes in fruits and vegetables. These can be seen as small round holes that sometimes have a larger brown area surrounding them.
Solutions
Solutions
For less serious cases:
  1. Remove beetles, nymphs, and eggs. Remove all life stages of the beetles and kill them by placing them in a bucket of warm, soapy water. This can be done more easily by placing the bucket under affected leaves and shaking the plant. This method is most effective in the afternoon when leaf beetles are more active. Always dispose of insects in a sealed bag or container to avoid escape and spread.
To treat more serious infestations:
  1. Apply organic insecticides. Use naturally-derived insecticides before moving on to synthetic insecticides. Neem oil and pyrethrum are naturally-derived insecticides that should be applied following label instructions.
  2. Apply synthetic insecticides. Examples of insecticides effective for leaf beetles include carbaryl, permethrin, and bifenthrin. Apply insecticides according to label instructions.
Prevention
Prevention
To prevent infestations of leaf beetles, follow these practices.
  1. Regularly check for beetles. To prevent large pest infestations, be proactive about frequently checking plants for pests and removing them quickly.
  2. Clear debris. Clear weeds and debris to remove areas where these beetles may overwinter and hide.
  3. Attract natural predators. Birds and other insects, such as wasps and ladybugs, are effective natural predators of leaf beetles. Encourage them to visit by including a diverse array of plants to provide habitat and food. Also, avoid applying broad-spectrum herbicides that can harm and kill beneficial insects.
  4. Plant aromatic herbs like mint, garlic, or rosemary, as these can repel leaf beetles.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
care_more_info

More About Common Sunflower

Plant Type
Plant Type
Herb
Lifespan
Lifespan
Annual
Spread
Spread
30 to 100 cm
Bloom Time
Bloom Time
Summer, Fall
Flower Color
Flower Color
Yellow
Orange
Red
Brown
Leaf Color
Leaf Color
Green
Flower Size
Flower Size
10 to 30 cm
Plant Height
Plant Height
1 to 3 m

Name story

Common sunflower
Generally, most people think that the naming of sunflower is based on the direction of sunrise and sunset. However, this is not the case. Matured sunflower will only face the East and it will not rotate with the direction of the sun. Nevertheless, the misconception of it facing the sun has embedded deeply in people's mind. Hence, it is called common sunflower.

Usages

Artistic Value
The common sunflower is often the subject of music, poetry and paintings. The most famous painting is Van Gogh's Sunflower.
Environmental Protection Value
It can purify the metal content of the soil.
Garden Use
The bright and beautiful common sunflower is a common annual in sunny home gardens. The tall stalks and large sunny blooms make it a beautiful backdrop to many other low-growing flowers in cottage and prairie/meadow gardens. Beans and squash are good veggies to grow with sunflowers, as they help balance the pH in the soil.
plantfinder

Find your perfect green friends.

Plan your green oasis based on your criteria: plant type, pet safety, skill level, sites, and more.
care_faq

Common Problems

Why do the common sunflower leaves turn yellow or wither?

more more
Common sunflower requires plenty of water during hot weather and during their growth period. If they are not watered regularly, their leaves may wilt. On the other hand, if they are overwatered the leaves at the bottom of the plant will turn yellow. If sunflowers are being grown in pots, they should be watered thoroughly each time, until water begins to seep from the bottom of the pot. Make sure to keep the soil moist. Water sunflower plants whenever you feel the soil is dry to the touch or the flowerpot feels light.

Why is my common sunflower slow to bloom or why are the flowers very small?

more more
Insufficient sunlight and fertilizer. Common sunflower requires plenty of sunlight, so it is recommended they are planted in an environment with sufficient sunlight. Ensuring a proper distance between plants helps with ventilation and allows them to receive enough sunlight. Excessive lateral buds on common sunflower should be removed, and fertilizer should be added to promote the growth of the main flower buds and facilitate blooming.

Why has my common sunflower become spindly?

more more
Sunflowers may become spindly and weak if they receive insufficient sunlight, if the temperature is higher than 30 ℃, or if they receive too much water. To avoid spindly growth, attention should be paid to controlling the humidity during planting, making sure sunflowers are watered if the soil becomes dry, and avoiding the accumulation of water in the soil.
care_new_plant

Caring for a New Plant

new-plant
The following pictures and instructions for flower plant are aimed to help your plants adapt and thrive in a new environment.
more
1
Picking a Healthy Flower Plant
check-health

Check Its Health

part
Whole Plant
Symmetrical crown, evenly distributed branches, full and compact shape, no excessive growth, close internodes, and uniform leaf size.
more
Flowers
Many unopened flower buds are closely attached, without falling off easily when shaken, and show no diseased spots or wilting on the petals.
part
Branches
The branches are not withered, and the trunk is free of boreholes or damage.
more
Stems
No mold, browning or soft rot at the base of the plant.
more
Leaves
Check the inside of the plant, shaded and overlapping areas, back of leaves. Even colour, no yellowing, no brown spots, no crawling insects, no cobwebs, no deformities, no wilting.
health-trouble

Health Troubleshooting

Whole Plant
Branches
Stems
Flowers
Leaves
more
more 1 Asymmetrical crown or missing, uneven branching: prune the weak and slender branches of the larger portion of the asymmetrical crown, then trim the overgrown larger branches.
more
more 2 Internodes are longer in the upper part, leaves are sparse and smaller on top: increase light intensity or duration.
more
more 1 Dry branches: check if the branch is still alive by peeling back a small section of bark and trim away any dry branches. Watch out for signs of insect infestation inside the branch.
more
more 2 Bark with holes: inject insecticide into the holes and apply systemic insecticide to the roots.
more
more 3 Damaged bark: brush on a wound-healing agent, and avoid getting it wet.
more
Mildew, browning, or soft rot at the base: place the plant in a ventilated, dry environment and water with fungicide.
more
more 1 Many flowers have already bloomed: lower the temperature in the environment to extend the flowering period. Prune any dying flowers in a timely manner to prevent nutrient depletion.
more
more 2 Flower bud dropping: keep temperature at 15-25℃, place in bright but shaded area, water frequently, and avoid fertilizing.
more
more 3 Flower petals have spots or disease: avoid spraying water directly onto the petals.
more
more 4 Flower wilting: avoid soil that is too wet or too dry. When touching the soil with your finger, it should feel moist but not leave any water traces on your finger.
more
more 1 Uneven leaf color and yellowing: prune yellow leaves and check if there are signs of rot at the base of the plant. Spray with fungicide for severe cases.
more
more 2 Brown spots or small yellow spots: place the plant in a ventilated area and avoid watering the leaves. Spray with fungicide for severe cases.
more
more 3 Tiny crawling insects on the back of leaves or spider webs between leaves: increase light exposure and spray with insecticide for severe cases.
more
more 4 Deformations or missing parts on leaves: determine if it's physical damage or pest infestation. Linear or tearing damage is physical, while the rest are pests. Spray with insecticide.
more
more 5 Wilting leaves: provide partial shade and avoid excessive sun exposure. Remove 1/3 to 1/2 of the leaves for severe cases.
autodiagnose

Treat and prevent plant diseases.

AI-powered plant doctor helps you diagnose plant problems in seconds.
check-condition

Check Its Growing Conditions

more
Soil Check
Soil should smell fresh like after a rain and no musty odor.
more
Light Check
Check the light requirement of the plant and if it match with planting location.
more
Ventilation Check
Ensure good ventilation.
more
Temperature Check
Ensure outdoor temperature is suitable for plants.
condition-trouble

Condition Troubleshooting

Soil
Ideal Temperature
Ventilation
Suitable Light
check
Potting mix soil, Peat moss mix soil
Soil
Soil smells musty or foul: check the root system for decay, place the plant in a ventilated, dry environment, and water with fungicide.
check
-10℃ to 35℃
Ideal Temperature
Temperature is too low: Temporarily move the plants indoors and then to outdoors when temperature is suitable.
check
Well Ventilated
Ventilation
Non-ventilated environment: can lead to root rot, diseases, and flower drop. Place the plants in an airy location avoiding dead spots.
check
Full sun, Partial sun
Suitable Light
Insufficient light: reduce light appropriately during flowering period but not a fully shaded environment. After flowering, move to normal cultivation environment. For plants with long flowering and fruiting periods, provide normal light to avoid shortening.
Transplant recovery: After transplanting, pot plants should be temporarily shaded, then moved to normal light after a week if no abnormal drop or wilting. In-ground plants, shade for a week and then transfer to normal light or just pay attention to watering.
more
2
Adapting Your New Flower Plant
Step 1
condition-image
Repotting
Potted plants - Wait until flowering stage is over before changing pots. In-ground plants - Plant directly taking care not to harm root system or remove soil.
Step 2
condition-image
Pruning
Prune residual flowers, yellow/dead leaves. No other pruning at this time.
Step 3
condition-image
Watering
Water appropriately. Water more frequently for newly transplanted or purchased plants to keep the soil consistently moist for at least 2 weeks. Avoid overwatering, do not water when there is water on your finger after touching the soil. Both underwatering and overwatering can cause plants to drop their flowers or fruit.
Step 4
condition-image
Fertilizing
Don't fertilize just after purchase. Fertilize after 2 weeks using half concentration.
lightmeter

Know the light your plants really get.

Find the best spots for them to optimize their health, simply using your phone.
product icon close
Your Ultimate Guide to Plants
Identify grow and nurture the better way!
product icon
17,000 local species +400,000 global species studied
product icon
Nearly 5 years of research
product icon
80+ scholars in botany and gardening
ad
product icon close
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
Water
close
Common Sunflower Watering Instructions
Common sunflower, or Helianthus annuus, is native to the arid plains of North America where rainfall is seasonal and unpredictable. Its watering preferences reflect this environment, requiring deep but occasional watering, mimicking rainfall followed by long periods of dryness. Overwatering can lead to soggy soil and plant disease. Therefore, making sure it dries out between waterings and providing well-drained soil can protect common sunflower's roots and promote overall health.
When Should I Water My Common Sunflower?
Introduction
Proper and timely watering plays a crucial role in maintaining the overall health and development of the common sunflower. It contributes to its optimal growth, vibrant flower production, and resistance against diseases. Therefore, understanding the appropriate signals indicating when the plant should be watered is essential.
Soil Moisture
Check the moisture level of the soil by inserting your finger into the soil up to 1-2 inches. If the soil feels dry at this depth, it is a clear indication that the common sunflower needs to be watered.
Leaf Drooping
If the leaves of the common sunflower start to droop or wilt, this is a sign that it needs water. The drooping leaves indicate that the plant is under stress due to insufficient water.
Leaf Color
Yellowing or fading of the leaves is another sign that the common sunflower requires watering. When the plant lacks water, the leaves may lose their vibrant green color and turn pale or yellowish.
Stunted Growth
If the common sunflower has not shown any growth for an extended period, it may be due to insufficient water. Stunted growth indicates that the plant needs water to support its growth and development.
Flower Production
During the flowering stage, if the common sunflower produces fewer or smaller flowers than usual, it may be a result of inadequate water supply. The plant requires sufficient water to support the energy-intensive process of flower production.
Time of Day
Watering the common sunflower early in the morning or late in the afternoon is ideal. This allows the plant to absorb the water before the peak heat of the day, reducing the risk of water loss through evaporation.
Early Watering Risks
Watering common sunflower too early, when the soil is still moist, could risk root rot, fungus infestation, and other root diseases due to over-watering.
Late Watering Risks
Watering common sunflower too late, when it has been excessively dry for an extended period, could risk temporary wilting and might stunt the plant's growth. In extreme conditions, it can lead to plant death due to dehydration.
Conclusion
Understanding these signs is critical to effectively manage the watering schedule for the common sunflower. Proper water management not only encourages its growth and flowering but also prolongs its lifespan and maintains plant health.
How Should I Water My Common Sunflower?
Watering Requirements
Common sunflower has specific watering needs and sensitivities that should be considered for optimal hydration.
Watering Technique
When watering common sunflower, it is best to water deeply and infrequently. This means providing a thorough watering that reaches the plant's entire root system, but allowing the soil to dry out slightly between waterings. This helps promote healthy root growth and prevents the risk of overwatering, which can lead to root rot and other issues. It is also important to water the plant at the base rather than overhead, as wetting the foliage excessively can increase the risk of fungal diseases.
Watering Can Type
When using a watering can for common sunflower, it is recommended to choose one with a narrow spout. This allows for more precise watering at the base of the plant, minimizing the risk of wetting the foliage excessively. Additionally, a watering can with a removable rose attachment can be useful for providing a gentle and even flow of water, preventing soil erosion.
How Much Water Does Common Sunflower Really Need?
Introduction
Common sunflower finds its roots in regions with full sun exposure, where it taps into high soil moisture levels to maintain its robust and large size. Mimicking such a habitat, watering requirements for common sunflower need to be equally sufficient.
Water Quantity
Common sunflower's watering needs will change depending on its stage of growth, container size, and the depth of its roots. A mature plant in a large container with deep roots may require up to 1-1.5 gallons of water on each watering to ensure all layers of soil remain moist. However, a smaller potted plant might require only 1-2 cups.
Indicators of Correct Watering
Common sunflower indicates its health and hydration levels through vibrant foliage and firm stems. A correctly watered common sunflower will also showcase a saturated root ball after watering and the moisture will be retained even hours after watering. Signs of overwatering include wilting and yellowing leaves while underwatering is indicated by drooping leaves.
Root Depth
Common sunflower's deep roots require a thorough soaking ensuring the water reaches the bottom of the pot. This deep watering technique enables common sunflower to hydrate optimally and capacitates it to access water reserves during dry spells.
Imbalance Implications
An imbalanced watering regimen could risk the plant's health. Overwatering common sunflower could lead to root rot, while underwatering could cause dehydration and stunted growth. Both conditions may cause the plant to wilt and drop its leaves prematurely which could affect flowering and subsequent seed production.
How Often Should I Water Common Sunflower?
Smart Seasonal Watering
Install the app for seasonal watering guidance
Download the App
Seedling
Every 3 days
Growing
Every 5 days
Flowering
Every 3 days
Fruiting
Every 4 days
Calculated based on: Chicago / March
What Kind of Water is Best for Common Sunflower?
Ideal Water Type
Common sunflower thrives best when watered with rainwater, as it most closely mimics the natural environment of the plant. If unavailable, tap water is second best, but measures should be taken to dechlorinate it.
Chlorine Sensitivity
Common sunflower has a sensitivity to high levels of chlorine which can be found in tap water. It is advisable to allow the tap water to sit out for a day before watering, to allow evaporation of the chlorine.
Fluoride Sensitivity
Common sunflower is not significantly sensitive to fluoride. However, excessively high levels of fluoride found in some tap waters can be detrimental. Using rainwater, or resting tap water, can mitigate this concern.
Mineral Sensitivity
Common sunflower is a resilient plant that can handle a wide range of minerals. Nonetheless, certain minerals from hard water like iron, calcium, and magnesium can slowly build up in the soil, potentially altering soil pH and nutrient availability.
Water Treatments
For tap water, it is beneficial for common sunflower to be watered with tap water that has been left to sit for 24 hours. This helps in dechlorinating the water.
Water Temperature
Common sunflower prefers water that is at room temperature. Cold water can shock the plant's system, causing damage or stunting growth.
Overall Conditions
Common sunflower prefers moist soil, but can tolerate periods of drought. Overwatering can cause root rot and other damage, so let the soil dry thoroughly before watering.
How Do Common Sunflower's Watering Needs Change with the Seasons?
How to Water common sunflower in Spring?
In Spring, common sunflower is gearing up for its main growth phase, and as such, soil moisture becomes crucial. Begin to increase your watering frequency as temperatures rise, supporting the emerging seedlings' needs. Warm, dry, or windy days can dry out the soil quickly, so check soil moisture levels regularly. Always ensure the top layer of soil is moist, but avoid overwatering as common sunflower doesn't like to sit in soggy soil.
How to Water common sunflower in Summer?
Summer is the prime growth season for common sunflower. Due to increased sunlight and common sunflower's active growth phase, ensure the soil remains consistently moist. This is especially crucial if your region experiences heatwaves, as common sunflower may require more frequent waterings to combat the high evaporation rates. However, be cautious not to overwater, keeping a balance to avoid root rot.
How to Water common sunflower in Autumn?
During Autumn, as temperatures drop and the days shorten, common sunflower's growth slows. This results in less water intake. Hence, you can gradually reduce watering. Continually assess the soil's moisture levels to ensure it doesn't become too dry, but avoid waterlogging the soil as the plant's water uptake is reduced during this season.
How to Water common sunflower in Winter?
For common sunflower, an annual plant, winter typically signals the end of the life cycle. If you have some still alive in the winter, overwatering becomes a higher risk due to lower evaporation rates in the cold. Therefore, it鈥檚 important to keep the soil slightly moist but not soggy. However, in regions where winters are mild, if the common sunflower is still actively growing, it may require regular water - but always check the soil first before watering.
What Expert Tips Can Enhance Common Sunflower Watering Routine?
Soil Moisture Assessment
To gauge soil moisture beyond the surface level, insert a moisture meter into the soil near the plant's roots. This will help determine if the plant needs watering or if the soil is still sufficiently moist.
Watering Tools
Consider using a watering wand with a narrow nozzle to deliver water directly to the base of the plant. This can help minimize water waste and avoid wetting the plant's leaves and flowers.
Watering Time
Water the Common sunflower in the early morning or late afternoon. This allows water to soak into the soil before the heat of the day evaporates it and reduces the risk of developing fungal diseases.
Avoid Over-watering
Common sunflowers prefer soil that is mostly dry before the next watering. Avoid the temptation to water too frequently as over-watering can lead to root rot and other issues. Instead, aim for deep, thorough waterings.
Signs of Thirst
Watch for signs of wilting or drooping leaves as an indication that the Common sunflower needs watering. However, do not wait until the plant reaches this state to water as it can lead to stress or stunted growth.
Adjusting Watering in Heatwaves
During a heatwave, monitor soil moisture levels closely, as the plant may require more frequent waterings. Consider providing shade during peak sun hours to reduce water loss through transpiration.
Adjusting Watering during Extended Rain
In periods of prolonged rain, it is vital to ensure proper drainage to prevent waterlogging. If heavy rainfall occurs, consider using a rain gauge to measure accumulation and adjust watering frequency accordingly.
Watering Stressed Plants
If the Common sunflower is showing signs of stress, such as yellowing leaves or slow growth, assess its watering needs. Adjust watering by providing slightly more water than usual, but avoid excessive watering to prevent root rot or other complications.
Considering Hydroponics? How to Manage a Water-Grown Common Sunflower?
Introduction
Hydroponics refers to a method of growing plants without soil, utilizing a water-based nutrient solution. The potential benefits of hydroponics for common sunflower include accelerated growth rates, increased yield, and the ability to grow in areas with limited access to arable land. This method also allows for precise control over the plant's nutrient intake and can lower the risk of soil-borne diseases.
Hydroponic System
Common sunflower thrives best in a Deep Water Culture (DWC) system. In this setup, the roots are suspended in oxygenated nutrient solution, allowing for optimal nutrient absorption and growth. This system is ideal for common sunflower as it provides an environment with plenty of water and nutrients, which this plant typically demands.
Nutrient Solution
Common sunflower requires a nutrient solution balanced in macro and micro nutrients. Nitrogen, Phosphorus, and Potassium (NPK) are particularly critical for this plant's growth. The pH level should be maintained between 6.0-6.5. The nutrient solution should be changed every 2 weeks to ensure adequate nutrient availability.
Common Challenges
Common challenges in growing common sunflower hydroponically include root rot due to lack of oxygen, nutrient imbalances, and sufficient light exposure. These issues can be addressed by ensuring proper aeration of the nutrient solution, routine monitoring of nutrient levels, and provision of adequate light either through natural sunlight or appropriate growth lights.
Monitoring Plant Health
Indicators of a healthy common sunflower plant include vibrant green leaves, sturdy stems, and robust blossoms. Symptoms like yellowing leaves or weak stems could indicate nutrient deficiencies or excesses. Root health, which varies from soil-grown plants, should also be carefully monitored. In hydroponics, healthy roots of common sunflower are typically white and vibrant.
Environment Adjustments
Common sunflower requires different resources depending on its growth stage. Seedlings require more humidity and less light than mature sunflowers. As the plant grows, light exposure should be increased, and temperature and humidity should be carefully controlled. More NPK nutrients should be added as the plant shifts into its flowering stage to support its growth.
Harvesting
Hydroponically-grown common sunflower usually matures quicker than its soil counterpart. It is typically ready for harvest when its petals start to wither, and the back of the flower head turns yellow to brownish.
Important Symptoms
Overwatering Symptoms of Common sunflower
Common sunflower is more susceptible to developing disease symptoms when overwatered because it prefers a soil environment with moderate humidity. Symptoms of overwatering include yellowing leaves, brown or black spots, root rot...
View more
(Symptom details and solutions)
Brown or black spots
Excessive watering can damage the plant's root system, making it vulnerable to fungal infections. The plant may develop dark brown to black spots that spread upwards from the lower leaves which are usually the first to be affected.
Root rot
Excess water in the soil can lead to the growth of harmful fungi and bacteria, causing the roots to rot and eventually kill the plant.
Soft or mushy stems
Excess water can cause stems to become soft and mushy, as the cells become waterlogged and lose their structural integrity.
Increased susceptibility diseases
Overwatering plants may become more susceptible and diseases as their overall health declines, weakening their natural defenses.
Solutions
1. Adjust watering frequency based on seasons and soil dryness. Wait for soil to dry before watering.2. Increase soil aeration by loosening surface and gently stirring with a wooden stick or chopstick.3. Optimize environment with good ventilation and warmth to enhance water evaporation and prevent overwatering.
Underwatering Symptoms of Common sunflower
Common sunflower is more susceptible to plant health issues when lacking watering, as it can only tolerate short periods of drought. Symptoms of dehydration include wilting, leaf curling, yellowing leaves...
View more
(Symptom details and solutions)
Wilting
Due to the dry soil and insufficient water absorption by the roots, the leaves of the plant will appear limp, droopy, and lose vitality.
Leaf curling
Leaves may curl inward or downward as they attempt to conserve water and minimize water loss through transpiration.
Increased susceptibility to pests and diseases
Underwatered plants may become more susceptible to pests and diseases as their overall health declines, weakening their natural defenses.
Dying plant
If underwatering continues for an extended period, the plant may ultimately die as a result of severe water stress and an inability to carry out essential functions.
Solutions
1. Thoroughly saturate soil with slow ring watering to ensure uniform and sufficient moisture for plants. 2. Increase air humidity with water trays or misting to slow leaf water evaporation. 3. Watering according to the recommended frequency.Adjust watering frequency based on seasons and soil dryness.
Watering Troubleshooting for Common Sunflower
Why are the leaves of my common sunflower turning yellow?
Yellowing leaves in common sunflower may signal overwatering. Sunflowers prefer evenly moist, well-drained soil. Too much water can cause the roots to become waterlogged and oxygen-starved, leading to yellowing leaves. Reduce the watering frequency and ensure the soil has proper drainage to solve this problem.
My common sunflower is wilting despite regular watering. What could be wrong?
Wilting in common sunflower can be a sign of underwatering. While sunflowers are drought-resistant, they still need regular water, especially during dry spells. The solution is to increase the watering frequency, particularly during hot weather, ensuring the water penetrates deep into the soil to reach the roots.
Why are the tips of my common sunflower leaves turning brown?
Brown tips on common sunflower leaves can be a consequence of overwatering or poor soil drainage, which can lead to root rot. Adjust your watering schedule to ensure the soil is not consistently waterlogged, and consider improving soil drainage by mixing in sand or organic matter.
What might cause the stem of my common sunflower to become soggy and collapse?
A soggy, collapsing stem in common sunflower is likely due to overwatering, leading to a condition known as stem rot. Reducing your watering frequency and improving soil drainage can help address this issue. Ensure the plant is not sitting in standing water and allow the topsoil to dry out between waterings.
Despite regular watering, my common sunflower is not blooming. Why might this be?
Lack of blooming in common sunflower can be due to overwatering or underwatering, both of which stress the plant and affect blooming. Adjust your watering schedule appropriately depending on the condition of the soil and the plant. Addition of a high-phosphorous fertilizer can stimulate budding and blooming.
Discover care info about seasonal tips, plant diseases, and more?
Lighting
close
Indoor
Indoor
Outdoor
Choose a site here for personalized care tips.
Requirements
Full sun
Ideal
Above 6 hours sunlight
Partial sun
Tolerance
About 3-6 hours sunlight
Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness.
Essentials
The common sunflower thrives when basked in abundant light for most parts of the day. Even with a decline in light for a few hours, it can still blossom healthily. In its natural, open environment, it is used to an overflow of sunlight. However, too little sunlight tends to cause decreased flowering, while overexposure may cause fading or wilting.
Preferred
Tolerable
Unsuitable
icon
Know the light your plants really get.
Find the best spots for them to optimize their health, simply using your phone.
Download the App
Artificial lighting
Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
View more
Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.
Important Symptoms
Symptoms of Insufficient Light in %s
Common sunflower, a plant that thrives in full sunlight, is commonly grown outdoors with ample sunlight. When cultivated indoors with inadequate light, it may exhibit subtle symptoms of light deficiency.
View more
(Symptom details and solutions)
Small leaves
New leaves may grow smaller in size compared to the previous ones once they have matured.
Leggy or sparse growth
The spaces between leaves or stems of your common sunflower may become longer, resulting in a thin and stretched-out appearance. This can make the plant look sparse and weak, and it may easily break or lean due to its own weight.
Faster leaf drop
When plants are exposed to low light conditions, they tend to shed older leaves early to conserve resources. Within a limited time, these resources can be utilized to grow new leaves until the plant's energy reserves are depleted.
Slower or no new growth
Common sunflower enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.
Lighter-colored new leaves
Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.
Solutions
1. To ensure optimal growth, gradually move plants to a sunnier location each week, until they receive at least 6 hours of direct sunlight daily. Use a south-facing window and keep curtains open during the day for maximum sunlight exposure and nutrient accumulation.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.
Symptoms of Excessive light in %s
Common sunflower thrives in full sun exposure and can tolerate intense sunlight. With their remarkable resilience, symptoms of sunburn may not be easily visible, as they rarely suffer from it.
View more
(Symptom details and solutions)
Chlorosis
Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.
Sunscald
Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.
Leaf Curling
Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.
Wilting
Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.
Leaf Scorching
Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.
Solutions
1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.
Discover care info about seasonal tips, plant diseases, and more?
Temperature
close
Indoor
Indoor
Outdoor
Choose a site here for personalized care tips.
Requirements
Ideal
Tolerable
Unsuitable
Just like people, each plant has its own preferences. Learn about your plants' temperature needs and create a comforting environment for them to flourish. As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share. Lovingly monitor the temperature around your plants and adjust their environment as needed. A thermometer can be your ally in this heartfelt endeavor. Be patient and gentle with yourself as you explore your plants' temperature needs. Cherish your successes, learn from challenges, and nurture your garden with love, creating a haven that reflects the warmth of your care.
Essentials
Common sunflower is native to temperate environments where temperatures generally range from 68 to 95℉ (20 to 35℃). It thrives best in these warm conditions. Depending on the season, adjusting temperatures to remain within this range may enhance optimal growth.
Regional wintering strategies
Common sunflower has strong cold resistance, so special frost protection measures are usually not necessary during winter. However, if the winter temperatures are expected to drop below {Limit_growth_temperature}, it is still important to provide cold protection. This can be achieved by covering the plant with materials such as soil or straw. Before the first freeze in autumn, it is recommended to water the plant abundantly, ensuring the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.
Important Symptoms
Symptoms of Low Temperature in %s
Common sunflower is cold-tolerant and thrives best when the temperature is above {Suitable_growth_temperature_min}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, although there may not be any noticeable changes during winter, there may be a decrease in sprouting or even no sprouting during springtime.
Solutions
In spring, remove any parts that have failed to sprout.
Symptoms of High Temperature in %s
During summer, Common sunflower should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the leaves of the plant may become lighter in color, prone to curling, susceptible to sunburn, and in severe cases, the entire plant may wilt and become dry.
Solutions
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.
Discover care info about seasonal tips, plant diseases, and more?
Transplant
close
How to Successfully Transplant Common Sunflower?
The ideal season for transplanting common sunflower is from mid to late spring, allowing it to fully benefit from ample sunshine and warmth. Choose a sunny location with adequate space for its growth. Remember to handle common sunflower carefully during transplant to avoid damaging its roots.
What Preparations are Needed Before Transplanting Common Sunflower?
What is the Ideal Time for Transplanting Common Sunflower?
Mid to late spring is the perfect season to transplant common sunflower. It provides the optimum temperature and sunlight required for healthy growth. This timing promotes lush foliage and vibrant blooms for common sunflower.
How Much Space Should You Leave Between Common Sunflower Plants?
To give common sunflower enough space to grow, try to keep a distance of about 1-2 feet (30-60 cm) between each plant. This will make sure they have enough room to spread their roots and grow strong.
What is the Best Soil Mix for Common Sunflower Transplanting?
For common sunflower, it's important to use well-drained soil with a pH of 6.0 to 7.5. To give it a good start, you can incorporate a bit of compost or aged manure into the soil before planting, acting as a base fertilizer.
Where Should You Relocate Your Common Sunflower?
Choose a location where common sunflower will receive plenty of direct sunlight, ideally at least 6-8 hours per day. This will help it grow strong and produce beautiful flowers.
What Equipments Should You Prepare Before Transplantation Common Sunflower?
Gardening Gloves
To protect your hands while working with the soil and plant.
Shovel or Spade
To dig holes for transplanting and remove the plant from its original location.
Trowel
For digging smaller holes and refining the transplant hole.
Watering Can or Hose
To water the plant during the transplanting process.
Organic Compost or Fertilizer
To provide nutrients for the common sunflower plant at the new location.
Mulch
To help retain moisture around the common sunflower plant after transplanting.
Stakes and Twine (optional)
To provide support to the common sunflower plant if it's tall or has large flower heads.
How Do You Remove Common Sunflower from the Soil?
- From Ground: First, water the common sunflower plant to dampen the soil. Then, dig a wide trench around the plant using a shovel or spade, ensuring the plant's root ball remains intact. Carefully work the spade under the root ball to lift the plant from its original location.
- From Pot: Water the common sunflower plant to moisten the soil. Gently tap the sides of the pot to loosen the soil and root ball, then carefully slide the plant out while supporting the base of the stem. Try to keep the root ball and surrounding soil intact during this process.
- From Seedling Tray: Water the common sunflower seedlings to dampen the soil. Hold the base of the seedling stem between your fingers and gently work a small trowel or spatula under the root ball. Carefully lift the seedling and its root ball out of the tray, keeping as much soil around the roots as possible.
Step-by-Step Guide for Transplanting Common Sunflower
Site Preparation
Prepare the transplant site by loosening the soil with a shovel or spade, mixing in organic compost or fertilizer to provide nutrients for the common sunflower plant.
Digging the Hole
Dig a hole large enough to accommodate the common sunflower plant's root ball, using either a shovel or trowel, depending on the size of the plant. Make sure the hole is at least twice as wide as the root ball.
Plant Placement
Carefully lower the common sunflower plant into the hole, making sure the top of the root ball is level with the surrounding soil. Adjust the size of the hole if necessary.
Filling the Hole
Gently backfill the hole with soil, firming the soil around the common sunflower plant with your hands to eliminate air pockets. Ensure that the stem is straight and the plant is secure in the hole.
Watering
Water the common sunflower plant generously using a watering can or hose, allowing the water to soak in and settle the soil.
Mulching
Apply a layer of mulch around the common sunflower plant, being careful not to touch the stem, to help retain moisture and discourage weeds.
Staking (optional)
If your common sunflower plant is tall or has large flower heads, install stakes around the plant and secure it with twine to provide support as it grows.
How Do You Care For Common Sunflower After Transplanting?
Watering
Keep the soil around the common sunflower consistently moist, but not soggy, for the first few weeks after transplanting to help establish strong roots.
Weed Control
Regularly remove any weeds growing around the common sunflower plant, as they compete with the plant for nutrients and water.
Fertilizing
Apply a balanced all-purpose fertilizer about 6 weeks after transplanting, following the package instructions for application rates.
Pest and Disease Monitoring
Regularly check the common sunflower plant for signs of pests or diseases and treat them accordingly.
Pruning (optional)
If the common sunflower plant becomes too tall or unruly, you can lightly prune it to encourage bushier growth and maintain a tidy appearance.
Troubleshooting Common Issues with Common Sunflower Transplantation.
When is the best time to transplant common sunflower?
Transplant common sunflower in mid to late spring, when the risk of frost has passed.
What is the perfect spacing for transplanting common sunflower?
Space common sunflower plants 1-2 feet (30-60 cm) apart, giving them room to grow.
How do I properly prepare the soil for common sunflower?
Till the soil about 10 inches (25 cm) deep, and mix in a slow-release fertilizer or compost.
Which depth should I plant common sunflower when transplanting?
Transplant common sunflower at the same depth as the container they were started in, so as not to harm roots.
How much sun does common sunflower need after transplanting?
Common sunflower thrives in full sun. Select a spot that gets at least 6-8 hours of direct sunlight daily.
How much water should I give common sunflower after transplant?
Water common sunflower thoroughly after transplanting, keeping the soil moist but not waterlogged. Adjust based on rainfall.
Should I stake common sunflower after transplanting?
Staking is optional. If your common sunflower plants grow very tall or are in a windy area, it's a good idea.
How can I protect transplanted common sunflower from pests?
Use natural methods like insecticidal soap, neem oil, or introduce beneficial insects to keep pests away.
What if common sunflower leaves start turning yellow after transplant?
Yellowing can be caused by overwatering, nutrient deficiencies, or pests. Evaluate conditions and adjust accordingly.
When will common sunflower bloom after transplanting?
Common sunflower normally blooms within 70-100 days after planting, depending on the variety and growing conditions.
Discover care info about seasonal tips, plant diseases, and more?
Cookie Management Tool
In addition to managing cookies through your browser or device, you can change your cookie settings below.
Necessary Cookies
Necessary cookies enable core functionality. The website cannot function properly without these cookies, and can only be disabled by changing your browser preferences.
Analytical Cookies
Analytical cookies help us to improve our application/website by collecting and reporting information on its usage.
Cookie Name Source Purpose Lifespan
_ga Google Analytics These cookies are set because of our use of Google Analytics. They are used to collect information about your use of our application/website. The cookies collect specific information, such as your IP address, data related to your device and other information about your use of the application/website. Please note that the data processing is essentially carried out by Google LLC and Google may use your data collected by the cookies for own purposes, e.g. profiling and will combine it with other data such as your Google Account. For more information about how Google processes your data and Google’s approach to privacy as well as implemented safeguards for your data, please see here. 1 Year
_pta PictureThis Analytics We use these cookies to collect information about how you use our site, monitor site performance, and improve our site performance, our services, and your experience. 1 Year
Cookie Name
_ga
Source
Google Analytics
Purpose
These cookies are set because of our use of Google Analytics. They are used to collect information about your use of our application/website. The cookies collect specific information, such as your IP address, data related to your device and other information about your use of the application/website. Please note that the data processing is essentially carried out by Google LLC and Google may use your data collected by the cookies for own purposes, e.g. profiling and will combine it with other data such as your Google Account. For more information about how Google processes your data and Google’s approach to privacy as well as implemented safeguards for your data, please see here.
Lifespan
1 Year

Cookie Name
_pta
Source
PictureThis Analytics
Purpose
We use these cookies to collect information about how you use our site, monitor site performance, and improve our site performance, our services, and your experience.
Lifespan
1 Year
Marketing Cookies
Marketing cookies are used by advertising companies to serve ads that are relevant to your interests.
Cookie Name Source Purpose Lifespan
_fbp Facebook Pixel A conversion pixel tracking that we use for retargeting campaigns. Learn more here. 1 Year
_adj Adjust This cookie provides mobile analytics and attribution services that enable us to measure and analyze the effectiveness of marketing campaigns, certain events and actions within the Application. Learn more here. 1 Year
Cookie Name
_fbp
Source
Facebook Pixel
Purpose
A conversion pixel tracking that we use for retargeting campaigns. Learn more here.
Lifespan
1 Year

Cookie Name
_adj
Source
Adjust
Purpose
This cookie provides mobile analytics and attribution services that enable us to measure and analyze the effectiveness of marketing campaigns, certain events and actions within the Application. Learn more here.
Lifespan
1 Year
This page looks better in the app
Open