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Basic Care
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FAQ

How to Care for Saguaro

Saguaro (*Carnegiea gigantea*) is a well-known perennial cactus that grow in arid desert plains. Native Americans ate the fruit from the saguaro and made fences and shelters out of the cactus body. Owls and other birds make nests in this species.
Water
Water
Once per month
Sunlight
Sunlight
Full sun
Saguaro
Saguaro
Saguaro
Saguaro
Saguaro
care_basic_guide

Basic Care Guide

Cultivation:WaterDetail

How to Water Saguaro?

Saguaro is a drought-tolerant plant that does not require frequent watering. Water thoroughly when the soil is completely dry. When potted, water slowly, wait for water to flow out the bottom, and then pour the excess water from the tray to avoid water accumulation.
Spring, summer, and fall are its growing seasons. Water once or twice a week to keep the soil slightly wet. In winter, water less; just keep the soil from drying excessively; usually once a week. Besides, water with rainwater or distilled water rather than tap water.
Tap water contains a lot of calcium, magnesium, and other mineral salts. Long-term use tends to cause soil compaction. Avoid splashing water on its stem when watering to prevent rotting.
Cultivation:WaterDetail
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What's the best method to water my Saguaro?
Another tip when watering this species is to water it from the bottom. This is for the proper absorption of water to the roots, enabling it to circulate the nutrients from the soil towards its whole body. When you accidentally spill water at the top part, this can cause the development of diseases and fungi.
Use sprinklers when you have irrigation systems. Get the small sprinklers if you have Saguaroed in your garden. It's best to get the revolving ones that allow you to change the water delivery patterns whenever you need them. Avoid turning on the sprinkler on windy days. Make sure to use the soak and dry method regardless if the Saguaro is in a pot or your garden. This will evenly distribute the moisture across the root systems resulting in healthier growth.
Some owners might want to get a built-in drainage system for their succulents. This is where layers of porous materials like recycled glass or hydro stones are placed beneath the soil. They will generally be a reservoir for excess water, so it's important not to pour too much water into these built-in systems.
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What should I do if I water my Saguaro too much/too little?
When you see that the Saguaro begins to turn yellow, know that this can be caused by underwatering or overwatering. When the soil is too wet, then there might be the presence of fungal infections. You should allow everything to dry, and you should not overwater.
Also, the browning and dropping symptoms indicate that your plant is getting too much moisture and water. If there's not enough water, the indication can be seen with the yellow tips that can begin to form on stems and branches.
When you're still in the process of buying the Saguaro, make sure to ask first if the soil is properly draining or sandy. When the topsoil does not properly drain, there's a chance that the plant will likely not receive enough water in the future.
Another thing is that the Saguaro tends to die when it's constantly getting overwatered and if it's receiving too much rain if planted outside. Use rainwater or distilled water whenever possible as the plants don't like many minerals in their drink.
You can see the squishy stems, drooping growth, and discolored parts that are all signs of too much moisture. It's critical to give the species time to recover and allow the pot to dry. Transfer it to a different container to avoid root rot and prevent it from dripping. If planted outside, you can also transfer it into a pot, especially in the winter, to help it recover.
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How often should I water my Saguaro?
Most of the time, you only need to water your succulents once every two to three weeks in the summer and spring. During the winter and fall, reduce the watering or avoid this as this plant tends to become dormant.
Let the soil dry completely, and it's always a good idea to lean on the side of underwatering rather than overwatering. When they are in the pot, water deeply at intervals to encourage healthier soil growth.
When they are planted outdoors, never water them lightly as this will result in more shallow root growth. Wait for a few weeks and only give them a drink when the soil around them is too dry.
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How much water does my Saguaro need?
Water this succulent efficiently and make sure to cover the entire pot. Set a saucer at the bottom of the pot so the roots will get enough moisture. When you see that the soil begins to saturate, take out the saucer immediately. The holes in the pot and the amount of soil will determine the frequency and the quantity of water you should give your plant. A can of water is often more than enough for the Saguaro especially if they are planted in pots.
When you plant them in the garden or outdoors, you need to include the rainwater they receive. About an inch of rainwater is more than enough to last them for a few weeks, so refrain from watering. When they are outside, you need to water them in the morning with about a gallon of water after you see that the soil is bone dry so the sunlight can help evaporate the excess moisture.
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Why is watering my Saguaro important?
Watering the Saguaro will help transport the nutrients that it needs from the soil to the rest of the plant. Without enough moisture, the Saguaro won't remain healthy or might even become malnourished. Watering should be done when you see some signs that the plant is thirsty. When you're in doubt, you should never overwater as this can be a way to kill them.
The best way to water them is the soak and dry method. When you see that the soil becomes too dry, you should soak them in water until you see that the pot is dripping with water underneath. Then, go for weeks without watering to give the soil a chance to rest.
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How can I ensure that i'm watering my Saguaro adequately?
Before you give this plant a drink, it's always a good idea to check the soil's moisture levels by poking your finger in it or using a moisture meter. This will tell you whether the soil is already too dry or if there's still moisture. It's a technique used by owners of smaller potted plants to know whether it's time to water or not.
Assess the needs of your Saguaro and know that it requires watering every two weeks during the summer. You can go as far as three weeks in the hot season before watering this, but in the fall or winter, there should not be any water at all. Allow the soil to dry between irrigations. They can be grown in greenhouses and other warm spots indoors and thrive well. When your plant is getting too much light, you can increase the watering frequency as long as you see that the soil is dry. They can also be grown outdoors, where you will need to water them less. Give it enough water once every three weeks; this should be more than enough. Don't rely alone on irrigations and sprinklers to reach their bases. Use a soaker hose that will hit the ground and spread the water. Make sure it won't hit much of the body of the plant as this can result in diseases.
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Should I adjust the frequency of watering my Saguaro according to different seasons or climates?
Saguaro is very tolerant of drought. This means that you don't need to water them very often. Watering frequency should also depend on the climate where you live. In a dry environment, you can make the watering conditions adapt well to your plants' needs. When they are in their early flowering stages, you might want to increase watering to help them grow. When they are receiving enough sunlight, water only in the morning. Specifically, they can be watered once every 10 to 14 days during the summer. You can increase this frequency during times of heat waves and make sure to mist the base from time to time lightly. When it's too cold, you can cut back on watering or once every 21 to 28 days when it begins to cool down.
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Should I adjust the watering frequency during the different growing stages of my Saguaro?
When you've just repotted the plant, you should wait for a week before you can water your Saguaro. When it's time to water them, be generous until you see the water coming out of the potholes but don't make it a deluge. When they have already grown and received medium light, you might want to water them once every 2 to 3 weeks since they are very tolerant to drought.
In the winter, you will further need to cut back on watering. The ideal time is to water it once every 3 to 4 weeks as long as the soil does not feel too dry. Winter is their resting season, so they don't consume a lot of energy or grow at this time.
If you grow the plants outdoors, rainwater can be another excellent alternative when you want to hold back on watering. When you live in an area where you don't get much rain, water at least once every three weeks to prevent the soil from drying too much.
In humid locations, there's no need to water a lot. When keeping the Saguaro indoors, you won't have to keep the moisture high, especially if the plant does not receive too much sunlight. When there's too much moisture and not enough light, this can spell disaster for the succulents.
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What should I be careful with when I water my Saguaro in different seasons, climates, or during different growing periods?
The Saguaro growing outdoors can thrive with rainfall, but when it’s planted in a pot, you need to be careful while Saguaro is still in the growing stage. One way to prevent overwatering is to check the top bottom inches of the soil for moisture. Once again, you need it to be dry so you can water it again. If you're unsure of the amount and the frequency, especially during the growing phase, go with underwatering and slightly increase it when you see a need. It's always a good idea to take a picture of the Saguaro and note how it looks after watering it. You can take things further by using moisture meters or hygrometers to check the air and soil moisture. These tools are available from various shops and can be valuable when you want to know the readings for humidity and water.
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Should I water my Saguaro differently when I plant it indoors vs outdoors?
Know that these plants can survive for weeks without any water. This is because they have water storage capacity that can conserve water for a long time. so it will conserve enough water to stay alive even if they are in the wild.
When they are fully grown, water them less since they can survive without water compared to when they were small. You need to give them time to get used to your climate and growing conditions before watering them. If they are indoors, keep them in indirect light and water them less frequently. Avoid using cold water during the winter and months, and you might be overwatering when the plants are located indoors. Give this a rest, especially during the winter and fall.
When they are outdoors, refrain from watering too much. They should be able to get enough humidity, moisture, and rainfall that will keep them alive. Only water when you see that their leaves are becoming droopy and yellowish. Always lean on the side of underwatering as the Saguaro is very tolerant to dry conditions. They don't like wet feet and might wilt when you water them too much.
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Cultivation:FertilizerDetail

How to Fertilize Saguaro?

In growing seasons (namely spring, summer and fall), fertilize saguaro once a month with liquid fertilizer. No fertilizer is required in winter. A small amount of slow-release fertilizer can be well mixed into the soil when repotting in spring or fall.
Use nitrogen fertilizer during seedling and phosphate-potassium fertilizer before and after blooming. The fertilizer concentration should be as low as possible. It would be better to apply low-concentrate fertilizer several times rather than to use a high concentration. If the base is yellow and grows slowly, the cause may be excessive fertilizer, and fertilization should be immediately stopped.

Fertilizer

Often found growing in rock gardens and used in xeriscaping, Saguaro adds plenty of interest and texture to the area. It is a slow-growing plant, and this affects its care. Saguaro does not require a lot of nutrients to thrive. Knowing when and how to feed your specimen will help ensure you get years of enjoyment from your plant. Fertilizing Saguaro adds nutrients to the growing medium. Even though it does store water and nutrients, applying plant food during the growing season helps support healthy growth. Fertilizing can also encourage mature specimens to produce blooms in the growing season.
While all plants benefit from additional nutrients, Saguaro only needs a light dose of fertilizer during the growing season. The frequency of fertilization should be 1-2 times a year. It is suggested to fertilize your Saguaro in the spring and autumn, but not in winter&summer when it is dormant. Be careful with repotted plants, you will want to reduce the amount of fertilizer. It’s also a good idea to wait a couple of months after repotting before you start applying fertilizer. It’s best to use a liquid plant food formulated for succulents and cacti when you are fertilizing Saguaro. Dilute the fertilizer with water to half-strength. You do not want the fertilizer building up in the soil. Apply the fertilizer to the base of the plant and water thoroughly, ensuring any excess moisture drains from the container or seeps into the ground.
It is easier to use liquid plant food when you are fertilizing Saguaro, but granules are another option. Follow the directions on the packaging, making sure you dilute liquid fertilizers to half-strength. Whether you are using granules are liquid plant food, always apply it to the soil. Cover the granules with a thin layer of soil and water regardless of the type of plant food you are using.
Over-fertilizing Saguaro is a common problem with new and experienced gardeners. The plant has low nutritional needs and it’s easy to apply a little too much fertilizer. Over-fertilizing Saguaro can burn the plant’s sensitive roots resulting in its slow decay. Without its root system, the plant cannot absorb nutrients and moisture.
Like most plants, Saguaro has a dormancy period and it is when you want to stop the applications of fertilizer. In the summer and winter, the plant ceases growing, and it is when you want to stop applying fertilizer. It’s also a good idea to cease fertilizing for the first couple of months after repotting in the spring.
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Cultivation:FertilizerDetail
Why do I need to fertilize my Saguaro?
Fertilizing Saguaro adds nutrients to the growing medium. Even though it does store water and nutrients, applying plant food during the growing season helps support healthy growth. Fertilizing can also encourage mature specimens to produce blooms in the growing season.
Read More more
When is the best time to fertilize my Saguaro?
While all plants benefit from additional nutrients, Saguaro only needs a light dose of fertilizer during the growing season. The frequency of fertilization should be 1-2 times a year. It is suggested to fertilize your Saguaro in the spring and autumn, but not in winter&summer when it is dormant. Be careful with repotted plants, you will want to reduce the amount of fertilizer. It’s also a good idea to wait a couple of months after repotting before you start applying fertilizer.
Read More more
When should I avoid fertilizing my Saguaro?
Like most plants, Saguaro has a dormancy period and it is when you want to stop the applications of fertilizer. In the summer and winter, the plant ceases growing, and it is when you want to stop applying fertilizer. It’s also a good idea to cease fertilizing for the first couple of months after repotting in the spring.
Read More more
What type of fertilizer does my Saguaro need?
It’s best to use a liquid plant food formulated for succulents and cacti when you are fertilizing Saguaro. Dilute the fertilizer with water to half-strength. You do not want the fertilizer building up in the soil. Apply the fertilizer to the base of the plant and water thoroughly, ensuring any excess moisture drains from the container or seeps into the ground.
Read More more
How do I fertilize my Saguaro?
It is easier to use liquid plant food when you are fertilizing Saguaro, but granules are another option. Follow the directions on the packaging, making sure you dilute liquid fertilizers to half-strength. Whether you are using granules are liquid plant food, always apply it to the soil. Cover the granules with a thin layer of soil and water regardless of the type of plant food you are using.
Read More more
What happens if I fertilize my Saguaro too much?
Over-fertilizing Saguaro is a common problem with new and experienced gardeners. The plant has low nutritional needs and it’s easy to apply a little too much fertilizer. Over-fertilizing Saguaro can burn the plant’s sensitive roots resulting in its slow decay. Without its root system, the plant cannot absorb nutrients and moisture.
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Cultivation:SunlightDetail

What Are the Sunlight Requirements for Saguaro?

Saguaro is a heliophilic plant and needs sufficient sunlight for its growth and blooming. It can be placed on the outdoor balcony or in the garden without shade. However, long-time exposure to blazing sunlight should be avoided in hot summer, when it needs to be shaded or cooled a little to prevent high temperatures from damaging it.
Cultivation:SunlightDetail
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How much sunlight does Saguaro need to grow?
Saguaro should get at least 6 hours of sun per day, and preferably more. An actual minimum number of hours can vary depending on the intensity of sunlight and other environmental factors, but it is unlikely that the Saguaro will get too much sunlight. They do fine with up to 14 hours of sun per day.
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What type of sunlight does Saguaro need?
Saguaro needs a lot of bright sunlight. As full-sun plants, they can thrive when given direct light or bright indirect sun. Some types may be able to survive with partial sun, but more sunlight is generally better.
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Should I protect Saguaro from sun exposure?
Saguaro usually grows in some of the hottest, sunniest places in the world and is well adapted to that kind of environment, so it does not need to be protected from the sun. However, you should be careful about making a sudden move into a very sunny location if your Saguaro is not used to it. Plants need time to adapt to different conditions, so start by moving this plant into the sun for a couple of hours at a time each day, then gradually lengthen the amount of sun exposure. Once adapted, most types of Saguaro will be fine in full sun and don't need protection.
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What will happen if Saguaro doesn't get enough sunlight?
Without enough sunlight, Saguaro will fail to thrive and grow. Common symptoms of inadequate sunlight include pale coloring, wilting leaves, and leaf drop. Saguaro may also exhibit etiolation (also called legginess). This condition occurs as the plant attempts to stretch toward the light source, leading to a sparse appearance and weak stems.
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What will happen if Saguaro gets too much sunlight?
Saguaro may develop shades of red, pink, or orange as a means of protection from excess sunlight, so many people like to cause mild sun stress to these plants during the summer. This is not harmful, and they will revert to their normal coloring when light levels decrease from autumn to spring.
If moved too quickly into direct sun, Saguaro can suffer from sunburn. This looks like white or brown spots on the uppermost leaves that have been exposed to the most sun. A sunburned plant should be moved to a shadier location and watered if needed. Sun-damaged leaves can be removed, and should be replaced by new growth over time.
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Does Saguaro need special care about sunlight during its different growth stages?
As with most plants, younger Saguaro will be more sensitive to strong sunlight and heat than a mature specimen. They should also be protected from direct sun immediately after being transplanted, either by a shade or by keeping the container in a shadier location until the plant is established and putting out new growth.
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Are there any cautions or tips for sunlight and Saguaro?
It is best to water Saguaro in the morning, particularly during the summer months. If water sits on the leaves or in the crown of the plant, it can burn the plant when the water heats up. It’s also best not to water in the evening, since cooler overnight temperatures slow evaporation and fungi or bacteria can develop in the moist conditions.
Saguaro grown in pots should be rotated occasionally to keep them growing symmetrically. Plants will normally grow toward the light source, so they can develop much more quickly on one side than the other if they are not rotated.
If Saguaro is allowed to get dusty, it will not be able to access sunlight to create energy. The dust acts as a barrier, so the plant may show signs of inadequate light even if it’s in a sunny location. Keep the leaves and stems clean by wiping them periodically with a damp cloth to avoid this issue.
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Cultivation:PruningDetail

How to Prune Saguaro?

Saguaro does not require much pruning. Remove withered flowers and branches so the plant uses nutrients on healthy growth.
Cultivation:PruningDetail
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care_advanced_guide

Advanced Care Guide

Cultivation:WaterAndHardinessDetail

What is the Ideal Temperature Range for Saguaro?

Saguaro is distributed throughout tropical, subtropical, and semi-desert regions with scarce rainfall, intense sunlight, and hot temperatures. The optimum temperature for growth is 20 to 35 ℃. Lower than 10 ℃ or higher than 35 ℃, growth slows and dormancy begins. The air humidity should not be too high and the environment should be well-ventilated. Avoid high humidity and accumulated water.
Cultivation:WaterAndHardinessDetail
What's the ideal temperature for your Saguaro?
It is more suitable to keep the Saguaro in a particular range of conditions. Temperatures the same as 75-90℉ (25-32℃) are ideal for it. During the early winter season, the temperature shouldn't go below 75℉(25℃) for Saguaro. You can even move it indoors as it will have better protection from the extremes.
Despite that, the Saguaro can survive in some extreme temperatures. Sometimes can survive in low temperatures like 50℉ (15℃), but it is not ideal. You should bring it inside if winter conditions are expected outside.
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How should I adjust the temperature for my Saguaro during different growing phases?
Saguaro has different growing phases. In the first stage, the dormant seed grows and transforms into a seedling. The dormant seeds need the appropriate conditions in their surroundings to grow as their seeds need a temperature of 75-90℉ (25-32℃) to germinate. The ideal time to make it grow vigorously is during the summer, as the most suitable temperature is around 85℉(30℃). You can adjust the placement of your Saguaro from indoors to sunlight during the hot summer months to receive enough sunlight.
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How can I keep my Saguaro warm in cold seasons?
It's advisable to bring your Saguaro indoors to avoid the harsh winter conditions. People opt to buy different types of grow light to provide enough sunlight for the plant. However, if your home is not extremely dark, it is not essential to buy these lights. Keep your plants where they will get the most sunlight possible. There should be sufficient light to keep the Saguaro thriving in winter. If you have several Saguaro, then keep them rotating so that they all receive enough sunlight.
Avoid placing your Saguaro too close to the window if you live in northern areas with frigid weather. The cold may be extreme to them, due to which they might get damaged.
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What happens to my Saguaro when the temperature is too high or too low?
Your Saguaro can grow better in summers and do better in warm temperatures 90℉(32℃) but you should protect it from temperature extremes during hot climates.
However, during winter, it is better to keep your plant dry. Saguaro do well in temperate climates having temperatures between 75-90℉ (25-32℃). However, some gardeners can expose their Saguaro to extreme temperatures causing stress in their plants. While high temperatures ranging between 90℉ and 95℉(32-35℃) can help maintain the deep colors for Saguaro, you must be careful when trying out such experiment. During the hot summer season extremely high temperatures can burn your Saguaro damaging their stem and root system. During the hottest time of the day (when the temperature is extremely high), consider relocating your plant to a shaded place or protect them with a shade cloth.
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How should I adjust the temperature for my Saguaro in different seasons?
In summers, high temperatures make the growth of Saguaro slowed down to survive in too hot a temperature.
As the cooler periods and rainfall begins, the Saguaro starts growing. If the place you live in has hot summers and warm winters with more rainfalls, you aren't required to change anything.
However, if you live in a place with cold winters, you should let your Saguaro grow more in summer and rest in winter. It is because there is not enough sunlight for Saguaro to grow in winter.
You can help your Saguaro enter dormancy if you live in a place with cold temperatures by decreasing the temperature to 50℉ to 75℉ (15℃ to 25℃).
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How can I keep my Saguaro warm without a heating pad?
To withstand freezing temperatures outside, as a solution, you can insulate your Saguaro with frost cloths, row covers, tents etc. You can also mulch your Saguaro with small rocks. Mulching the Saguaro soil will provide warmth to your plants and will not let you over-water the plant.
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How can I protect my Saguaro from temperature damage?
Saguaro is adapted to sunlight and requires sufficient sunlight for healthy growth. You can place it in an outdoor environment without any shade. However, Saguaro shouldn't be kept for a long time in the blazing sunlight in the hot summer when it requires to be put under shade so that extreme temperature doesn't damage them. If the winter is extreme in our area, you must keep your Saguaro indoors to keep them away from frost.
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What are the tips and precautions for keeping my Saguaro at the right temperature?
Increase water and fertilizer during the growth of plants in spring and summer. Prevent your plant from receiving too much sunlight. To cool plants, spray water around them when the temperature is exceptionally high but don't put water on their stem.
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Cultivation:SoilDetail

What Soil is Best for Saguaro?

Saguaro grows best in fertile, gravel-rich, water-permeable soil with a pH value of 6-7. The culture soil formula often used is 60% vermiculite + 20% coco coir or peat moss + 20% sandy soil. A small amount of organic potting soil can also be added. Lightweight culture media such as vermiculite can be added to improve the air permeability of the soil. Eggshell powder or vermicompost can also be added to increase the soil fertility.
Roots of saguaro are very sensitive to oxygen deficiency. If the soil is poorly permeable to air and water, root rot can set in. It's easy to judge permeability: when watering, water should pass through the medium quickly, rather than stop at the soil surface and slowly seep down. Repot and loosen the soil every year to ensure the air permeability of the soil.
Cultivation:SoilDetail
Cultivation:PropagationDetail

How to Propagate Saguaro?

In addition to the seeding mentioned above, main propagation methods include division and grafting. To divide, cut off the tip or lateral branches of the stem with a knife and plant it in soil. After a period of time, many small shoots will grow up near the cut. When a shoot grows to proper size, it can be cut off and transplanted to form a new plant.
To graft, select a suitable rootstock. Cut the tip of the rootstock, such as the stem of pitahaya (Hylocereus undatus), and then put saguaro, with its roots removed, in the center of the rootstock and fix it with a rope. After 1-2 weeks, the two parts grow together and the rope can be removed.

Propagation

Only sow Saguaro 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 Saguaro 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.
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Cultivation:PropagationDetail
Cultivation:PlantingDetail

How to Plant Saguaro?

Sow, plant, or repot in spring or fall when the temperature is 15 to 20 ℃ . Keep air humidity high when seeding. Use plastic film to cover the soil and remove it after the seeds germinate.
Use permeable clay flowerpots for potted plants. Too large a flowerpot accumulates water easily, while too small a flowerpot limits the development of roots. Before planting, expose soil to blazing sunlight and disinfect to kill pathogens.
If planted in the garden, saguaro prefers an area with full sun and loose soil. Remove all weeds and replace the soil if needed to ensure good water permeability and avoid root rot. Wear gloves or use tongs when planting to prevent your fingers from getting pricked. You can also wrap the plant in a towel to help you move it.
Cultivation:PlantingDetail
Cultivation:HarvestDetail

How to Harvest Saguaro?

Most fruits of saguaro are edible. Pick the fruit when they turn red. Avoid food safety issues by confirming the species with experts. Wear gloves or use scissors and other tools to harvest.
Cultivation:HarvestDetail
PlantCare:TransplantSummary

How to Transplant Saguaro?

The optimal period to transplant saguaro is between seasons 3-5 or late spring to early summer as the warmed soil stimulates root growth. For successful relocation, select a sunny spot with good drainage. Remember to handle with care, the plant's skin is sensitive!
PlantCare:TransplantSummary
care_scenes

More Info on Saguaro Growth and Care

Basic Care Guide
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Lighting
Full sun
Saguaro thrives under ample sun exposure and can accommodate nothing less. This prevalence stems from its origins, where unfiltered sunlight beams consistently. Receiving too little light can stunt its growth, whereas excessive sun exposure doesn't appear to damage it significantly.
Best Sunlight Practices
Temperature
5 45 ℃
Saguaro is native to environments where temperatures are typically between 68 to 106 °F (20 to 41 ℃). This plant thrives most actively within this temperature range. In different seasons, monitoring local weather and adjusting its shade or exposure could help it adapt.
Temp for Healthy Growth
Transplant
15-20 feet
The optimal period to transplant saguaro is between seasons 3-5 or late spring to early summer as the warmed soil stimulates root growth. For successful relocation, select a sunny spot with good drainage. Remember to handle with care, the plant's skin is sensitive!
Transplant Techniques
Overwinter
20 ℃
Saguaro thrives in the Sonoran Desert's arid climate, naturally adapted for cold, dry winters. The plant's thick, water-retentive skin, spines for insulation, and low nighttime metabolic rate conserve heat. For home gardeners in colder climates, indoor wintering is advised, with limited watering and temperature kept above 10°C. Always cross-check individual saguaro's needs, as age and size can impact overwintering needs.
Winter Techniques
Feng shui direction
Northeast
The saguaro, in the realm of Feng Shui, is considered a commanding embodiment of steadfastness and longevity, mirroring the principles of Earth and Metal. This makes its compatibility with the Northeast, an Earth element direction, reasonably harmonious. However, due to the unique nature of Feng Shui, individual experiences could differ, thus making its efficacy subjective.
Fengshui Details
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Seasonal Care Tips

seasonal-tip

Seasonal Precautions

During peak growth in spring, summer, and fall, increase water and fertilizer. Avoid sunlight exposure in the heat of the summer. Spray water around the plant to cool it down when the temperature is too high, but avoid leaving water on the stem. Avoid water accumulation in the soil. In winter, water it as little as possible or not at all, and stop fertilizer.
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Spring

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Summer

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Fall

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Winter

The plant and similar succulent plants resume growing in the spring after winter dormancy.

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1
Water the plant once or twice a month when the soil begins drying out.
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2
An application of a balanced fertilizer every two weeks helps support healthy growth.
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3
Pruning old growth encourages blooming and branching for a fuller plant.
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Spring is also the time to repot the succulent if necessary.
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5
Pay attention to the temperature in the early spring, this plant requires warmth and sunlight to resume growing.
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Cutting off a leaf and setting it in a fresh growing medium is an easy way to propagate your plant.

Succulents like this plant are actively growing in the summer.

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1
Keep an eye on soil moisture levels. Do not allow the soil to completely dry out.
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2
Continue fertilizing every couple of weeks with all-purpose plant food.
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3
The plant also requires plenty of sunlight during the day to encourage blooming.
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4
Prune back the old flowers after blooming at the end of the summer.
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5
While your plant is actively growing, you can also remove stems for propagation. Place the stem in fresh soil and lightly water it.

While your plant is starting to enter dormancy towards the end of fall, it's still growing for much of the season.

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1
Continue watering and fertilizing on a regular schedule, but reduce both of these routines as the season winds down and begins reaching dormancy.
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Use an all-purpose fertilizer and water the plant when the soil is dry; make sure to err on the side of dry soil rather than soggy soil.
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3
Keep making sure your plant receives enough light during this time, particularly during the morning or evening hours, which will help the plant grow well.

During the cold winter months, the plant usually goes into a dormant state.

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1
Reduce watering your plant in the winter to give it a rest and let it lie dormant. It’s best to keep the plant dry during this season, rather than risk it being soggy.
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2
Make sure it receives an adequate amount of sunlight, typically in the morning or evening, although it’s not as urgent during dormancy.
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3
Since these plants don't survive in freezing outdoor temperatures, keep them in sufficiently warm rooms indoors, away from drafts or cold windows.
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For the most part, you can leave these hardy plants to themselves during these colder months.
care_pet_and_diseases

Common Pests & Diseases

Common issues for Saguaro based on 10 million real cases
Caterpillars
Caterpillars Caterpillars
Caterpillars
Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.
Solutions: Even though caterpillars are diverse, they all chew on plant parts and can cause significant damage if present in large numbers. For severe cases: Apply insecticide. For an organic solution, spray plants with a Bacillus thuringiensis (Bt), which specifically affects the larval stage of moths and butterflies. Be sure to coat plants, since caterpillars need to ingest Bt for it to be effective. This will not harm other insects. Spray a chili extract. Chili seeds can be cooked in water to make a spicy spray that caterpillars don't like. Spray this mixture on the plants, but be aware it will also be spicy to humans. Introduce beneficial insects. Release beneficial insects to the garden that eat caterpillars, such as parasitic wasps. For less severe cases: Hand pick. Using gloves, pick off caterpillars on plants and dispose of them in a bucket of soapy water. Dust plants with diatomaceous earth. This powder is harmless to humans but irritates caterpillars. Therefore, it will make it difficult for caterpillars to move and eat.
Scars
Scars Scars
Scars
Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.
Solutions: Each source of scarring requires a different approach to help your plant recover. Protect the trunk and leaves from physical damage like scrapes. If pests or disease are the cause of scarring, isolate the plant from others to avoid further spread. Some pests can be removed with organic remedies such as a soft cloth and soapy water solution or diluted isopropyl alcohol spray. Stop sunburn by moving your plant away from direct sunlight and making sure it has the water it needs. Frequent leaf or bud loss may be due to insufficient light or nutrients.
Brown spot
Brown spot Brown spot
Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Flower withering
Flower withering Flower withering
Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Solutions: If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible. For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface. In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well. If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
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Caterpillars
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Caterpillars
Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.
Overview
Overview
Caterpillars can cause problems for home gardeners. If not managed, these insects can defoliate a plant in just a matter of days. However, home gardeners face a challenge because these caterpillars eventually turn into beautiful butterflies and moths, which are important for pollination and the general ecosystem.
There are thousands of different species of caterpillars and many will only target certain plants. If caterpillars are posing a problem, they can be removed by hand, or gardeners can use insect-proof netting to protect their valuable plants.
Symptom Analysis
Symptom Analysis
Caterpillars are the larvae of butterflies and moths. During the warmer months, butterflies and moths that visit gardens will lay their eggs on the underside of leaves.
When the tiny eggs hatch, the young larvae emerge and start feeding on the leaves of the plant. Depending on how many larvae have hatched, they can easily defoliate the plant in a very short period of time. Caterpillars will shed their skin as they grow, around 4 or 5 times during this feeding cycle.
Symptoms of caterpillars eating plants appear as holes in the leaves. The edges of the leaves may be eaten away as well, and flowers can be affected as well.
Some are easy to see, but others need to be searched for. This is because their bodies are often camouflaged to look like part of the plant. Gardeners need to look carefully along the stems of the plant as well as under the leaves. Also, look for tiny white, yellow, or brown eggs that can be found in groups on the underside of leaves.
Once the caterpillar is fully grown, it transforms into a pupa or chrysalis. Then, after a period of time that varies according to the species, a butterfly or moth will emerge from the pupa and the cycle begins again.
Solutions
Solutions
Even though caterpillars are diverse, they all chew on plant parts and can cause significant damage if present in large numbers.
For severe cases:
  1. Apply insecticide. For an organic solution, spray plants with a Bacillus thuringiensis (Bt), which specifically affects the larval stage of moths and butterflies. Be sure to coat plants, since caterpillars need to ingest Bt for it to be effective. This will not harm other insects.
  2. Spray a chili extract. Chili seeds can be cooked in water to make a spicy spray that caterpillars don't like. Spray this mixture on the plants, but be aware it will also be spicy to humans.
  3. Introduce beneficial insects. Release beneficial insects to the garden that eat caterpillars, such as parasitic wasps.
For less severe cases:
  1. Hand pick. Using gloves, pick off caterpillars on plants and dispose of them in a bucket of soapy water.
  2. Dust plants with diatomaceous earth. This powder is harmless to humans but irritates caterpillars. Therefore, it will make it difficult for caterpillars to move and eat.
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Scars
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Scars
Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.
Symptom Analysis
Symptom Analysis
Scars form when the plant repairs wounds. They can be the result of people or pets passing by and scraping the plant. Once the underlying issue is resolved, the plant will heal but a scar may remain.
Pests and pathogens can also cause scarring. Insects may attack the plant for a meal, resulting in extensive scarring when a few invaders turn into an infestation. Diseases such as fungus and bacteria can weaken the plant, causing brown spots, mushy areas, or blisters that lead to scars.
Scars occur on stems when a leaf or bud has been lost and the plant has healed. The harder tissue is like a scab that protects a wound.
On other occasions, scars can signal problems from environmental conditions, such as overexposure to sunlight or heat. It might surprise you to know that plants can suffer from sunburn, even desert dwellers like cactus!
Solutions
Solutions
Each source of scarring requires a different approach to help your plant recover.
  1. Protect the trunk and leaves from physical damage like scrapes.
  2. If pests or disease are the cause of scarring, isolate the plant from others to avoid further spread. Some pests can be removed with organic remedies such as a soft cloth and soapy water solution or diluted isopropyl alcohol spray.
  3. Stop sunburn by moving your plant away from direct sunlight and making sure it has the water it needs.
  4. Frequent leaf or bud loss may be due to insufficient light or nutrients.
Prevention
Prevention
Preventing some sources of scarring is easier than others, but all start with careful attention to your plants once you decide to bring them home.
  1. Review specific guidelines for your plant, including soil drainage, watering, and fertilizer requirements.
  2. Inspect plants before planting and use sterile pots and fresh potting soil or media to limit transfer of fungi or bacteria.
  3. Once established, check your plants regularly for signs of scarring or the presence of pests, as it is better to catch problems as early as possible.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
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Flower withering
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Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Overview
Overview
Flower withering occurs when flowers become weak, droopy, wilted, or faded until they can’t be revived. During withering, they begin to wrinkle and shrink until the flower becomes completely dry or dead.
Any flowers, regardless of the plant type or the climate they are grown in, are susceptible to withering. It is a worldwide problem across houseplants, herbs, flowering ornamentals, trees, shrubs, garden vegetables, and food crops.
Unlike wilting—which withering is often confused with—withering can be caused by different things and is often due to more than a lack of water. Withering can be fatal in severe cases.
Symptom Analysis
Symptom Analysis
Flower withering progresses from very mild cases to severe occurrences that kill the flower. The severity of the symptoms is related to the cause and how long the condition is allowed to progress before action is taken.
  • Wilted, droopy flowers
  • Petals and leaves begin to wrinkle
  • Brown papery streaks or spots appear on the petals and leaf tips
  • Flowerhead shrink in size
  • Petal color fades
  • Yellowing leaves
  • Complete death of the flower
Disease Cause
Disease Cause
The main causes of flower withering include natural age progress, lack of water, nutritional deficiencies, and bacterial or fungal diseases. It’s critical to determine the underlying cause when flower withering is noticed. This will guide the best course of action, if treatment is possible.
Check the soil for moisture and then closely examine the entire plant for signs of nutrient deficiencies. If neither of those appears to be the cause then cut open the stem below a flower. If a cross-section reveals brown or rust-colored stains it is safe to assume that this is a bacterial or fungal infection.
If the flower is nearing the end of its normal lifespan, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence, or cell aging and death. Cell division stops and the plant begins breaking down resources within the flower to use in other parts of the plant.
In all other cases, flower withering happens when the plant seals off the stem as a defense mechanism, stopping transport within the vascular system. This prevents further water loss through the flowers but also stops bacteria and fungi from moving to healthy parts of the plant. Once water and nutrient transport stops, the flower begins to wither and ultimately die.
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More About Saguaro

Plant Type
Plant Type
Tree
Lifespan
Lifespan
Perennial
Flower Color
Flower Color
White
Green
Flower Size
Flower Size
7 to 9 cm
Plant Height
Plant Height
3 to 16 m
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Common Problems

Why is its fleshy stem thinner and thinner as it grows?

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Thin stems may be caused by insufficient sunlight, insufficient water, or fertilizer deficiency. Move the pot to a brighter place, but avoid sunburn. Increase water and fertilizer.

How do I deal with root or stem rot?

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Excess water often leads to root and stem rot. Avoid accumulated water in soil. Prune rotten roots and stems and transplant to a new flowerpot in a well-ventilated place. The soil should be loose and air-permeable as far as possible.

Why doesn't my saguaro ever bloom?

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Firstly, it may not be time for the plant to bloom. Time from seedling to blooming can range between 2-20 years or longer. Secondly, the plant may need more sunlight, temperature or fertilizer. Increase the exposure to sunlight and fertilizer appropriately, supplement the fertilizer with phosphorus and potassium, or purchase special fertilizer for promoting blooming of saguaro.

Why does saguaro turn yellow?

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Saguaro turns yellow due to overwatering, insufficient sunlight, or pests. Saguaro does not require much water, and excess water leads to root anoxia and root rot. Generally, it does not need to be watered often. Water it only when the soil is completely dry. Remember to drain the water in the flowerpot tray. Sunlight can be increased, but avoid direct exposure to blazing sunlight to prevent sunburn. Remove a small amount of pests with alcohol. For large infestations, spray pesticide.
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About
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Saguaro
Saguaro
Saguaro
Saguaro
Saguaro

How to Care for Saguaro

Saguaro (*Carnegiea gigantea*) is a well-known perennial cactus that grow in arid desert plains. Native Americans ate the fruit from the saguaro and made fences and shelters out of the cactus body. Owls and other birds make nests in this species.
Water
Once per month
Water
Sunlight
Full sun
Sunlight Sunlight detail
care_basic_guide

Basic Care Guide

Cultivation:WaterDetail

How to Water Saguaro?

Cultivation:WaterDetail
Saguaro is a drought-tolerant plant that does not require frequent watering. Water thoroughly when the soil is completely dry. When potted, water slowly, wait for water to flow out the bottom, and then pour the excess water from the tray to avoid water accumulation.
Spring, summer, and fall are its growing seasons. Water once or twice a week to keep the soil slightly wet. In winter, water less; just keep the soil from drying excessively; usually once a week. Besides, water with rainwater or distilled water rather than tap water.
Tap water contains a lot of calcium, magnesium, and other mineral salts. Long-term use tends to cause soil compaction. Avoid splashing water on its stem when watering to prevent rotting.
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Cultivation:FertilizerDetail

How to Fertilize Saguaro?

Cultivation:FertilizerDetail
In growing seasons (namely spring, summer and fall), fertilize saguaro once a month with liquid fertilizer. No fertilizer is required in winter. A small amount of slow-release fertilizer can be well mixed into the soil when repotting in spring or fall.
Use nitrogen fertilizer during seedling and phosphate-potassium fertilizer before and after blooming. The fertilizer concentration should be as low as possible. It would be better to apply low-concentrate fertilizer several times rather than to use a high concentration. If the base is yellow and grows slowly, the cause may be excessive fertilizer, and fertilization should be immediately stopped.
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Fertilizer

Often found growing in rock gardens and used in xeriscaping, Saguaro adds plenty of interest and texture to the area. It is a slow-growing plant, and this affects its care. Saguaro does not require a lot of nutrients to thrive. Knowing when and how to feed your specimen will help ensure you get years of enjoyment from your plant. Fertilizing Saguaro adds nutrients to the growing medium. Even though it does store water and nutrients, applying plant food during the growing season helps support healthy growth. Fertilizing can also encourage mature specimens to produce blooms in the growing season.
While all plants benefit from additional nutrients, Saguaro only needs a light dose of fertilizer during the growing season. The frequency of fertilization should be 1-2 times a year. It is suggested to fertilize your Saguaro in the spring and autumn, but not in winter&summer when it is dormant. Be careful with repotted plants, you will want to reduce the amount of fertilizer. It’s also a good idea to wait a couple of months after repotting before you start applying fertilizer. It’s best to use a liquid plant food formulated for succulents and cacti when you are fertilizing Saguaro. Dilute the fertilizer with water to half-strength. You do not want the fertilizer building up in the soil. Apply the fertilizer to the base of the plant and water thoroughly, ensuring any excess moisture drains from the container or seeps into the ground.
It is easier to use liquid plant food when you are fertilizing Saguaro, but granules are another option. Follow the directions on the packaging, making sure you dilute liquid fertilizers to half-strength. Whether you are using granules are liquid plant food, always apply it to the soil. Cover the granules with a thin layer of soil and water regardless of the type of plant food you are using.
Over-fertilizing Saguaro is a common problem with new and experienced gardeners. The plant has low nutritional needs and it’s easy to apply a little too much fertilizer. Over-fertilizing Saguaro can burn the plant’s sensitive roots resulting in its slow decay. Without its root system, the plant cannot absorb nutrients and moisture.
Like most plants, Saguaro has a dormancy period and it is when you want to stop the applications of fertilizer. In the summer and winter, the plant ceases growing, and it is when you want to stop applying fertilizer. It’s also a good idea to cease fertilizing for the first couple of months after repotting in the spring.
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Cultivation:SunlightDetail

What Are the Sunlight Requirements for Saguaro?

Cultivation:SunlightDetail
Saguaro is a heliophilic plant and needs sufficient sunlight for its growth and blooming. It can be placed on the outdoor balcony or in the garden without shade. However, long-time exposure to blazing sunlight should be avoided in hot summer, when it needs to be shaded or cooled a little to prevent high temperatures from damaging it.
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Cultivation:PruningDetail

How to Prune Saguaro?

Cultivation:PruningDetail
Saguaro does not require much pruning. Remove withered flowers and branches so the plant uses nutrients on healthy growth.
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Advanced Care Guide

Cultivation:WaterAndHardinessDetail

What is the Ideal Temperature Range for Saguaro?

Cultivation:WaterAndHardinessDetail
Saguaro is distributed throughout tropical, subtropical, and semi-desert regions with scarce rainfall, intense sunlight, and hot temperatures. The optimum temperature for growth is 20 to 35 ℃. Lower than 10 ℃ or higher than 35 ℃, growth slows and dormancy begins. The air humidity should not be too high and the environment should be well-ventilated. Avoid high humidity and accumulated water.
What's the ideal temperature for your Saguaro?
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Cultivation:SoilDetail

What Soil is Best for Saguaro?

Cultivation:SoilDetail
Saguaro grows best in fertile, gravel-rich, water-permeable soil with a pH value of 6-7. The culture soil formula often used is 60% vermiculite + 20% coco coir or peat moss + 20% sandy soil. A small amount of organic potting soil can also be added. Lightweight culture media such as vermiculite can be added to improve the air permeability of the soil. Eggshell powder or vermicompost can also be added to increase the soil fertility.
Roots of saguaro are very sensitive to oxygen deficiency. If the soil is poorly permeable to air and water, root rot can set in. It's easy to judge permeability: when watering, water should pass through the medium quickly, rather than stop at the soil surface and slowly seep down. Repot and loosen the soil every year to ensure the air permeability of the soil.
Cultivation:PropagationDetail

How to Propagate Saguaro?

Cultivation:PropagationDetail
In addition to the seeding mentioned above, main propagation methods include division and grafting. To divide, cut off the tip or lateral branches of the stem with a knife and plant it in soil. After a period of time, many small shoots will grow up near the cut. When a shoot grows to proper size, it can be cut off and transplanted to form a new plant.
To graft, select a suitable rootstock. Cut the tip of the rootstock, such as the stem of pitahaya (Hylocereus undatus), and then put saguaro, with its roots removed, in the center of the rootstock and fix it with a rope. After 1-2 weeks, the two parts grow together and the rope can be removed.
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Propagation

Only sow Saguaro 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 Saguaro 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.
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Cultivation:PlantingDetail

How to Plant Saguaro?

Cultivation:PlantingDetail
Sow, plant, or repot in spring or fall when the temperature is 15 to 20 ℃ . Keep air humidity high when seeding. Use plastic film to cover the soil and remove it after the seeds germinate.
Use permeable clay flowerpots for potted plants. Too large a flowerpot accumulates water easily, while too small a flowerpot limits the development of roots. Before planting, expose soil to blazing sunlight and disinfect to kill pathogens.
If planted in the garden, saguaro prefers an area with full sun and loose soil. Remove all weeds and replace the soil if needed to ensure good water permeability and avoid root rot. Wear gloves or use tongs when planting to prevent your fingers from getting pricked. You can also wrap the plant in a towel to help you move it.
Cultivation:HarvestDetail

How to Harvest Saguaro?

Cultivation:HarvestDetail
Most fruits of saguaro are edible. Pick the fruit when they turn red. Avoid food safety issues by confirming the species with experts. Wear gloves or use scissors and other tools to harvest.
PlantCare:TransplantSummary

How to Transplant Saguaro?

PlantCare:TransplantSummary
The optimal period to transplant saguaro is between seasons 3-5 or late spring to early summer as the warmed soil stimulates root growth. For successful relocation, select a sunny spot with good drainage. Remember to handle with care, the plant's skin is sensitive!
care_seasonal_tips

Seasonal Care Tips

seasonal-tip

Seasonal Precautions

During peak growth in spring, summer, and fall, increase water and fertilizer. Avoid sunlight exposure in the heat of the summer. Spray water around the plant to cool it down when the temperature is too high, but avoid leaving water on the stem. Avoid water accumulation in the soil. In winter, water it as little as possible or not at all, and stop fertilizer.
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Spring

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Summer

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Fall

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Winter

The plant and similar succulent plants resume growing in the spring after winter dormancy.

more
1
Water the plant once or twice a month when the soil begins drying out.
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2
An application of a balanced fertilizer every two weeks helps support healthy growth.
more
3
Pruning old growth encourages blooming and branching for a fuller plant.
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4
Spring is also the time to repot the succulent if necessary.
more
5
Pay attention to the temperature in the early spring, this plant requires warmth and sunlight to resume growing.
more
6
Cutting off a leaf and setting it in a fresh growing medium is an easy way to propagate your plant.

Succulents like this plant are actively growing in the summer.

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1
Keep an eye on soil moisture levels. Do not allow the soil to completely dry out.
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2
Continue fertilizing every couple of weeks with all-purpose plant food.
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3
The plant also requires plenty of sunlight during the day to encourage blooming.
more
4
Prune back the old flowers after blooming at the end of the summer.
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5
While your plant is actively growing, you can also remove stems for propagation. Place the stem in fresh soil and lightly water it.

While your plant is starting to enter dormancy towards the end of fall, it's still growing for much of the season.

more
1
Continue watering and fertilizing on a regular schedule, but reduce both of these routines as the season winds down and begins reaching dormancy.
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2
Use an all-purpose fertilizer and water the plant when the soil is dry; make sure to err on the side of dry soil rather than soggy soil.
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3
Keep making sure your plant receives enough light during this time, particularly during the morning or evening hours, which will help the plant grow well.

During the cold winter months, the plant usually goes into a dormant state.

more
1
Reduce watering your plant in the winter to give it a rest and let it lie dormant. It’s best to keep the plant dry during this season, rather than risk it being soggy.
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2
Make sure it receives an adequate amount of sunlight, typically in the morning or evening, although it’s not as urgent during dormancy.
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3
Since these plants don't survive in freezing outdoor temperatures, keep them in sufficiently warm rooms indoors, away from drafts or cold windows.
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4
For the most part, you can leave these hardy plants to themselves during these colder months.
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Common Pests & Diseases

Common issues for Saguaro based on 10 million real cases
Caterpillars
Caterpillars Caterpillars Caterpillars
Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.
Solutions: Even though caterpillars are diverse, they all chew on plant parts and can cause significant damage if present in large numbers. For severe cases: Apply insecticide. For an organic solution, spray plants with a Bacillus thuringiensis (Bt), which specifically affects the larval stage of moths and butterflies. Be sure to coat plants, since caterpillars need to ingest Bt for it to be effective. This will not harm other insects. Spray a chili extract. Chili seeds can be cooked in water to make a spicy spray that caterpillars don't like. Spray this mixture on the plants, but be aware it will also be spicy to humans. Introduce beneficial insects. Release beneficial insects to the garden that eat caterpillars, such as parasitic wasps. For less severe cases: Hand pick. Using gloves, pick off caterpillars on plants and dispose of them in a bucket of soapy water. Dust plants with diatomaceous earth. This powder is harmless to humans but irritates caterpillars. Therefore, it will make it difficult for caterpillars to move and eat.
Learn More About the Caterpillars more
Scars
Scars Scars Scars
Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.
Solutions: Each source of scarring requires a different approach to help your plant recover. Protect the trunk and leaves from physical damage like scrapes. If pests or disease are the cause of scarring, isolate the plant from others to avoid further spread. Some pests can be removed with organic remedies such as a soft cloth and soapy water solution or diluted isopropyl alcohol spray. Stop sunburn by moving your plant away from direct sunlight and making sure it has the water it needs. Frequent leaf or bud loss may be due to insufficient light or nutrients.
Learn More About the Scars more
Brown spot
Brown spot Brown spot Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Learn More About the Brown spot more
Flower withering
Flower withering Flower withering Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Solutions: If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible. For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface. In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well. If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Learn More About the Flower withering more
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Caterpillars
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Caterpillars
Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.
Overview
Overview
Caterpillars can cause problems for home gardeners. If not managed, these insects can defoliate a plant in just a matter of days. However, home gardeners face a challenge because these caterpillars eventually turn into beautiful butterflies and moths, which are important for pollination and the general ecosystem.
There are thousands of different species of caterpillars and many will only target certain plants. If caterpillars are posing a problem, they can be removed by hand, or gardeners can use insect-proof netting to protect their valuable plants.
Symptom Analysis
Symptom Analysis
Caterpillars are the larvae of butterflies and moths. During the warmer months, butterflies and moths that visit gardens will lay their eggs on the underside of leaves.
When the tiny eggs hatch, the young larvae emerge and start feeding on the leaves of the plant. Depending on how many larvae have hatched, they can easily defoliate the plant in a very short period of time. Caterpillars will shed their skin as they grow, around 4 or 5 times during this feeding cycle.
Symptoms of caterpillars eating plants appear as holes in the leaves. The edges of the leaves may be eaten away as well, and flowers can be affected as well.
Some are easy to see, but others need to be searched for. This is because their bodies are often camouflaged to look like part of the plant. Gardeners need to look carefully along the stems of the plant as well as under the leaves. Also, look for tiny white, yellow, or brown eggs that can be found in groups on the underside of leaves.
Once the caterpillar is fully grown, it transforms into a pupa or chrysalis. Then, after a period of time that varies according to the species, a butterfly or moth will emerge from the pupa and the cycle begins again.
Solutions
Solutions
Even though caterpillars are diverse, they all chew on plant parts and can cause significant damage if present in large numbers.
For severe cases:
  1. Apply insecticide. For an organic solution, spray plants with a Bacillus thuringiensis (Bt), which specifically affects the larval stage of moths and butterflies. Be sure to coat plants, since caterpillars need to ingest Bt for it to be effective. This will not harm other insects.
  2. Spray a chili extract. Chili seeds can be cooked in water to make a spicy spray that caterpillars don't like. Spray this mixture on the plants, but be aware it will also be spicy to humans.
  3. Introduce beneficial insects. Release beneficial insects to the garden that eat caterpillars, such as parasitic wasps.
For less severe cases:
  1. Hand pick. Using gloves, pick off caterpillars on plants and dispose of them in a bucket of soapy water.
  2. Dust plants with diatomaceous earth. This powder is harmless to humans but irritates caterpillars. Therefore, it will make it difficult for caterpillars to move and eat.
Prevention
Prevention
Prevention may require less effort than attempts to eradicate infestations that have already begun. Here are our top steps for prevention:
  1. Monitor plants. Check plants regularly for caterpillar eggs on leaves. If they do not belong to an endangered species, they should be squished.
  2. Use insect netting. Cover plants with insect netting to prevent butterflies and moths from laying eggs on plants.
  3. Apply diatomaceous earth. Apply DE to plants early in the season and reapply after rain.
  4. Encourage plant diversity. This will attract predatory insects including parasitic wasps.
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Scars
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Scars
Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.
Symptom Analysis
Symptom Analysis
Scars form when the plant repairs wounds. They can be the result of people or pets passing by and scraping the plant. Once the underlying issue is resolved, the plant will heal but a scar may remain.
Pests and pathogens can also cause scarring. Insects may attack the plant for a meal, resulting in extensive scarring when a few invaders turn into an infestation. Diseases such as fungus and bacteria can weaken the plant, causing brown spots, mushy areas, or blisters that lead to scars.
Scars occur on stems when a leaf or bud has been lost and the plant has healed. The harder tissue is like a scab that protects a wound.
On other occasions, scars can signal problems from environmental conditions, such as overexposure to sunlight or heat. It might surprise you to know that plants can suffer from sunburn, even desert dwellers like cactus!
Solutions
Solutions
Each source of scarring requires a different approach to help your plant recover.
  1. Protect the trunk and leaves from physical damage like scrapes.
  2. If pests or disease are the cause of scarring, isolate the plant from others to avoid further spread. Some pests can be removed with organic remedies such as a soft cloth and soapy water solution or diluted isopropyl alcohol spray.
  3. Stop sunburn by moving your plant away from direct sunlight and making sure it has the water it needs.
  4. Frequent leaf or bud loss may be due to insufficient light or nutrients.
Prevention
Prevention
Preventing some sources of scarring is easier than others, but all start with careful attention to your plants once you decide to bring them home.
  1. Review specific guidelines for your plant, including soil drainage, watering, and fertilizer requirements.
  2. Inspect plants before planting and use sterile pots and fresh potting soil or media to limit transfer of fungi or bacteria.
  3. Once established, check your plants regularly for signs of scarring or the presence of pests, as it is better to catch problems as early as possible.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
Solutions
Solutions
In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary.
Organic options won’t kill the fungus, but will prevent it from spreading.
  1. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear.
  2. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread.
  3. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Prevention
Prevention
Like many other diseases, it is easier to prevent brown spot than cure it, and this is done through cultural practices.
  • Clear fall leaves from the ground before winter to minimize places where fungi and bacteria can overwinter.
  • Maintain good air movement between plants through proper plant spacing.
  • Increase air circulation through the center of plants through pruning.
  • Thoroughly clean all pruning tools after working with diseased plants.
  • Never dispose of disease plant material in a compost pile.
  • Avoid overhead watering to keep moisture off of the foliage.
  • Keep plants healthy by providing adequate sunlight, water, and fertilizer.
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Flower withering
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Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Overview
Overview
Flower withering occurs when flowers become weak, droopy, wilted, or faded until they can’t be revived. During withering, they begin to wrinkle and shrink until the flower becomes completely dry or dead.
Any flowers, regardless of the plant type or the climate they are grown in, are susceptible to withering. It is a worldwide problem across houseplants, herbs, flowering ornamentals, trees, shrubs, garden vegetables, and food crops.
Unlike wilting—which withering is often confused with—withering can be caused by different things and is often due to more than a lack of water. Withering can be fatal in severe cases.
Symptom Analysis
Symptom Analysis
Flower withering progresses from very mild cases to severe occurrences that kill the flower. The severity of the symptoms is related to the cause and how long the condition is allowed to progress before action is taken.
  • Wilted, droopy flowers
  • Petals and leaves begin to wrinkle
  • Brown papery streaks or spots appear on the petals and leaf tips
  • Flowerhead shrink in size
  • Petal color fades
  • Yellowing leaves
  • Complete death of the flower
Disease Cause
Disease Cause
The main causes of flower withering include natural age progress, lack of water, nutritional deficiencies, and bacterial or fungal diseases. It’s critical to determine the underlying cause when flower withering is noticed. This will guide the best course of action, if treatment is possible.
Check the soil for moisture and then closely examine the entire plant for signs of nutrient deficiencies. If neither of those appears to be the cause then cut open the stem below a flower. If a cross-section reveals brown or rust-colored stains it is safe to assume that this is a bacterial or fungal infection.
If the flower is nearing the end of its normal lifespan, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence, or cell aging and death. Cell division stops and the plant begins breaking down resources within the flower to use in other parts of the plant.
In all other cases, flower withering happens when the plant seals off the stem as a defense mechanism, stopping transport within the vascular system. This prevents further water loss through the flowers but also stops bacteria and fungi from moving to healthy parts of the plant. Once water and nutrient transport stops, the flower begins to wither and ultimately die.
Solutions
Solutions
If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface.
In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well.
If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Prevention
Prevention
This is definitely one of those instances where prevention is more effective than cure. Here are some preventative measures for avoiding premature flower withering.
  • Water plants according to their needs -- either keep the soil slightly moist or allow the top inch or two to dry out before watering again.
  • Fertilize lightly on a consistent basis, depending upon the plant’s growth. Quick-growing plants and those that flower or develop fruit will need more frequent fertilizing than slow-growing plants.
  • Purchase plants that are certified disease- or pathogen-free.
  • Look for disease-resistant cultivars.
  • Isolate plants showing disease symptoms to prevent the spread to neighboring plants.
  • Practice good plant hygiene by removing any fallen plant material as soon as possible.
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More About Saguaro

Plant Type
Plant Type
Tree
Lifespan
Lifespan
Perennial
Flower Color
Flower Color
White
Green
Flower Size
Flower Size
7 to 9 cm
Plant Height
Plant Height
3 to 16 m
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Common Problems

Why is its fleshy stem thinner and thinner as it grows?

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Thin stems may be caused by insufficient sunlight, insufficient water, or fertilizer deficiency. Move the pot to a brighter place, but avoid sunburn. Increase water and fertilizer.

How do I deal with root or stem rot?

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Excess water often leads to root and stem rot. Avoid accumulated water in soil. Prune rotten roots and stems and transplant to a new flowerpot in a well-ventilated place. The soil should be loose and air-permeable as far as possible.

Why doesn't my saguaro ever bloom?

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Firstly, it may not be time for the plant to bloom. Time from seedling to blooming can range between 2-20 years or longer. Secondly, the plant may need more sunlight, temperature or fertilizer. Increase the exposure to sunlight and fertilizer appropriately, supplement the fertilizer with phosphorus and potassium, or purchase special fertilizer for promoting blooming of saguaro.

Why does saguaro turn yellow?

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Saguaro turns yellow due to overwatering, insufficient sunlight, or pests. Saguaro does not require much water, and excess water leads to root anoxia and root rot. Generally, it does not need to be watered often. Water it only when the soil is completely dry. Remember to drain the water in the flowerpot tray. Sunlight can be increased, but avoid direct exposure to blazing sunlight to prevent sunburn. Remove a small amount of pests with alcohol. For large infestations, spray pesticide.
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Lighting
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Indoor
Indoor
Outdoor
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Requirements
Full sun
Ideal
Above 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
Saguaro thrives under ample sun exposure and can accommodate nothing less. This prevalence stems from its origins, where unfiltered sunlight beams consistently. Receiving too little light can stunt its growth, whereas excessive sun exposure doesn't appear to damage it significantly.
Preferred
Tolerable
Unsuitable
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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.
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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
Insufficient light
Saguaro is a beloved choice for indoor gardening, and they require strong light to thrive. However, when placed in rooms with suboptimal lighting, they may develop symptoms of light deficiency.
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(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 Saguaro 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
Saguaro 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.
Excessive light
Saguaro require strong light to thrive, and some are remarkably resilient to sun exposure, rarely suffering from sunburn.
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(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.
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Temperature
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Indoor
Indoor
Outdoor
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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
Saguaro is native to environments where temperatures are typically between 68 to 106 °F (20 to 41 ℃). This plant thrives most actively within this temperature range. In different seasons, monitoring local weather and adjusting its shade or exposure could help it adapt.
Regional wintering strategies
Saguaro is a heat-loving plant that gradually stops growing and enters a dormant state during the winter. When the outdoor temperature drops below {Tolerable_growing_temperature_min}, it should be moved indoors for cultivation. Choose a location near a south-facing window to provide as much sunlight as possible. If there is insufficient natural light, supplemental lighting can be used. When the temperature falls below {Suitable_growth_temperature_min}, the plant's growth slows down, and watering should be reduced or stopped to prevent root rot. For Saguaro grown outdoors, watering should be completely halted during low temperatures. If feasible, you can set up a temporary greenhouse for insulation or use materials such as plastic film or fabric to wrap the plant during cold temperatures.
Important Symptoms
Low Temperature
Saguaro thrives in high temperatures and is not tolerant of low temperatures. It grows 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}, the plant may become weak, wilt, and be prone to root rot. In cases of mild frost damage, there may not be any initial symptoms, but after a week, the plant will gradually wither.
Solutions
Trim off the frostbitten areas, paying attention to whether the roots have rotted. If the roots have rotted, they need to be cut off, and the plant can be propagated through cuttings. Immediately move indoors to a warm environment and place the plant near a south-facing window to ensure ample sunlight. If there is insufficient light, you can use supplemental lighting.
High Temperature
During summer, Saguaro should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the plant's growth will cease, it will experience water loss, wilting, and becomes more susceptible to sunburn.
Solutions
Remove the sunburned and rotten parts. Shield the plant from afternoon sunlight until it recovers and starts growing again. For plants with root rot, stop watering until new roots begin to emerge.
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Transplant
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How to Successfully Transplant Saguaro?
The optimal period to transplant saguaro is between seasons 3-5 or late spring to early summer as the warmed soil stimulates root growth. For successful relocation, select a sunny spot with good drainage. Remember to handle with care, the plant's skin is sensitive!
What Preparations are Needed Before Transplanting Saguaro?
What is the Ideal Time for Transplanting Saguaro?
The perfect time to transplant saguaro is in late spring to early summer. This season offers mild temperatures, optimal for saguaro's proper root establishment. Transplanting your saguaro in this time ensures enhanced growth, as it aligns iwith its natural growth cycle, reducing the risk of transplant shock.
How Much Space Should You Leave Between Saguaro Plants?
Ensure saguaro has ample room to grow, ideally a distance of about 15-20 feet (4.5-6 meters) between each plant. Consider this to ensure healthy growth and avoid overcrowding.
What is the Best Soil Mix for Saguaro Transplanting?
Saguaro prefers well-draining soil to prevent waterlogging. Prepare it with a base fertilizer rich in potassium and phosphorus. Start with a test to confirm the soil's condition and amend to fit these specifics.
Where Should You Relocate Your Saguaro?
Choose a transplantation location that will provide saguaro with full sun exposure. Saguaro thrives under direct sunlight, so ensure there are no obstructions such as trees or buildings which could block the light.
What Equipments Should You Prepare Before Transplantation Saguaro?
Gardening Gloves
These are essential to protect your hands while working with the soil and the saguaro plant, which has sharp spines.
Shovel
This will be used to dig out the saguaro from its original location and to prepare the new planting hole.
Utility Cart or Wheelbarrow
For transporting the cactus from the original site to the new site. Remember, saguaro can be extremely heavy depending on their size.
Sling
It is useful for safely handling and moving large saguaro.
Gardening Trowel
You'll use this to add soil when you're planting saguaro.
Watering Can
For watering the saguaro after transplanting.
Padded Gloves
Since saguaro has sharp spines, use these gloves to keep your hands safe while handling the plant.
How Do You Remove Saguaro from the Soil?
From Ground: Begin by watering the saguaro plant to dampen the soil, which makes it easier to dig out. With your shovel, carefully dig a trench around the plant, making sure you're far enough away to not harm the root ball. After removing all the soil around the plant, carefully slide a piece of burlap or heavy cloth under the root ball. Use a sling to help lift the saguaro out of the ground without causing damage to the plant.
From Pot: Before removing an saguaro from its pot, water it thoroughly to minimize the stress of transplanting. Turn the pot upside down and gently tap it to release the saguaro. If it’s been in the pot a while and refuses to come out, you might need to cut the pot away. Always hold it by the root ball, not the stem or branches, to minimize damage.
From Seedling Tray: If you’ve been growing an saguaro from seed in a seedling tray, wait until the cactus is at least 1 inch tall before transplanting. Use a spoon or small garden tool to carefully dig around the seedling. Lift it gently from the base, taking care not to touch the spines, and make sure to keep the root ball intact.
Step-by-Step Guide for Transplanting Saguaro
Step1 Site Selection
Choose a site that has suitable conditions for the saguaro to thrive. These plants demand a lot of sunshine and must be in a sunny location.
Step2 Prepare the Site
Use your shovel to dig a hole at least twice as large as the saguaro's root ball. Also, ensure the hole is deep enough so the cactus won't be planted deeper than it was previously.
Step3 Transplant
Carefully place the saguaro in the new hole using the sling. Ensure it's standing upright. Backfill the hole with the soil, firming it gently around the base of the saguaro.
Step4 Watering
Once the saguaro is planted, water it thoroughly to help the soil settle.
How Do You Care For Saguaro After Transplanting?
Protection
After you plant your saguaro, throw a shade cloth over it to protect it from extreme temperatures and help it adjust to its new home.
Irrigation
Allow the soil to dry out completely before watering. Over-watering can lead to rot which will quickly kill your saguaro.
Disease & Pests
Keep an eye out for pests and diseases such as mealybugs and fungal rot. If detected, consult with your local nursery for the best treatment.
Troubleshooting Common Issues with Saguaro Transplantation.
When is the best time to transplant saguaro?
The ideal time to transplant saguaro is between seasons 3 and 5. This is when the plant's dormant stage aids the successful transplantation process.
What's the optimal distance to maintain between saguaro during planting?
For saguaro, maintain a distance of about 15-20 feet (4.5-6 meters). This space between plants gives them ample room to grow and thrive.
How deep should the holes be when transplanting saguaro?
Dig a hole twice as wide and as deep as the root ball of the saguaro. This ensures the roots have ample space for proper growth.
Do I need to water saguaro immediately after transplanting?
Yes, watering saguaro immediately after transplanting helps the plant settle in the soil and minimizes the transplant shock.
How often should I water saguaro after transplantation?
For the first year after transplanting saguaro, water it regularly but lightly. Overwatering may cause root rot.
Do I need to stake saguaro after transplanting?
Yes, staking saguaro provides support and prevents the plant from toppling over, especially in high winds.
How can I ensure successful transplantation of saguaro?
Adequate sunlight, proper watering, and using well-draining soil will significantly contribute to a successful saguaro transplantation.
How long does it take for saguaro to recover from transplant shock?
Saguaro may take several weeks to recover from transplant shock. Provide appropriate care, and be patient while the plant adjusts to the new environment.
What are the signs of transplant shock in saguaro?
Symptoms of transplant shock in saguaro may include wilting, yellowing leaves, slowed growth, or branch dieback.
Should I fertilize saguaro soon after transplanting?
No, avoid fertilizing saguaro immediately after transplanting. Wait for a few weeks till the plant is well acclimated to its new surroundings.
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