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Plant Encyclopedia > Purple dead-nettle

Key Facts About Purple dead-nettle

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Attributes of Purple dead-nettle

Lifespan

Annual, Perennial, Biennial

Plant Type

Herb

Planting Time

Early spring

Bloom Time

Mid spring, Late spring, Early summer, Mid summer

Harvest Time

Spring

Plant Height

5 cm to 30 cm

Spread

20 cm

Leaf Color

Purple

Flower Size

1.02 cm to 2 cm

Flower Color

Purple

Lavender

Stem Color

Red

Purple

Dormancy

Winter dormancy

Leaf type

Deciduous

Ideal Temperature

20 - 35 ℃

Growth Season

Spring, Summer, Fall, Winter

Pollinators

Bees

Name story

Purple dead-nettle

Though it is similar to species of Urtica (true nettles) in appearance, it is not related to Urtica and does not sting. As the flowers are purple in color, the name is called purple dead-nettle.

Purple archangel

In some places, it’s known as the purple archangel. It is because it blooms around the Feast of the Apparition on May 8, which was when St. Michael, the archangel appeared as an onlooker at Mount Gargano in sixth-century in Italy.

Symbolism

Confidence, courage, happiness, graceful persistence, clear thinking, emotional balance

Trivia and Interesting Facts

Purple dead-nettle is one of the wildflowers that are staple foods for both wild and cultivated bees in temperate regions of Eurasia, especially for the hungry bumblebee queens during the peak of their breeding season. As Lamium purpureum can flower almost anytime, it provides continuous nourishment for pollinators during the spring, summer, and even autumn.

Scientific Classification of Purple dead-nettle

Phylum

Vascular plants

Class

Dicotyledons

Order

Mints plantains olives and allies

Family

Mint

Genus

Dead-nettles

Species

Purple dead-nettle

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Weed Control About Purple dead-nettle

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Weeds

Purple dead-nettle is an annual plant native to mainland Europe and Asia, but it has been naturalized in the British Isles, Ireland, western US, and Canada. It is a cool-season plant. One of the first wildflowers to appear in the spring, it dries out and goes dormant during the summer and then starts growing again as the weather gets cooler. Its early seasonal appearance means that purple dead-nettle can outcompete the still-dormant lawn grasses and garden plants, which is why it may be considered weedy, especially outside. Still, it is an important early feed for bees and other pollinators.

How to Control it

The best time to remove weeds is before their flowering and fructification, otherwise controlling them can be very difficult. After they have flowered and fructified, their seeds can spread very fast, and hence, the weeds should be removed more often and precautions should be taken in advance in the following year. Mulching: During the seed stage, covering the soil with sawdust, straw or black mulches can effectively inhibit seed germination and the growth of seedlings. In the winter or spring, this method is often used to inhibit the seeds in the soil from germinating. If the weeds have already flowered and fructified, then the method can also be used to prevent more seeds from falling into the soil. Pulling out: Wear gloves or use tools to remove weeds before their fructification. If the soil is too dry, then water the soil thoroughly to make it softer, which can help to remove the root systems of the weeds. After that, deep tillage can be adopted to remove bits of weed roots left in the ground. This method works particularly well for weeds that are low-growing or in their seedling stages. Mowing: Mowing weeds before their fructification can effectively control their spread. Especially for annual weeds, frequent mowing can inhibit their growth and fructification, and thus can remove them effectively within the year. Ploughing: Be sure to plough and pull out all roots of perennial weeds before planting. The roots should be discarded, exposed to the sun for a long time, or buried deep. You can also use the roots to make organic fertilizer and compost the weeds. If it is grown as an ornamental plant, its floral axis should be promptly cut to avoid fructification leading to spreading. Herbicides can be used for effective removal. Note: When removing weeds, especially those which are toxic, thorny and have allergenic sap, be sure to wear gloves and avoid direct contact with them. When removing weeds during their bloom time, be sure to wear special masks to prevent pollen allergy.

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Distribution of Purple dead-nettle

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Habitat of Purple dead-nettle

Roadsides, waste places, cultivated land

Northern Hemisphere

South Hemisphere

Distribution Map of Purple dead-nettle

Purple dead-nettle is native to Europe, Scandinavia, across Russia, and south into North Africa via the Mediterranean. It has become naturalized in most of the United States, Argentina, Korea, and New Zealand. It grows in temperate climates in meadowlands, grasslands, and along forest edges.

Native

Cultivated

Invasive

Potentially invasive

Exotic

No species reported

Questions About Purple dead-nettle

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Watering

Sunlight

Temperature

What is the best way to water my Purple dead-nettle?

To water Purple dead-nettle, you can use a garden hose with a spray nozzle, a watering can, or just about any other common watering tool. Generally, Purple dead-nettle is not too picky about how they receive their water, as they can live off of rainwater, tap water, or filtered water. Often, you should try not to water this plant from overhead, as doing so can damage the leaves and flowers and may lead to disease as well. At times, the best method for watering this plant is to set up a drip irrigation system. These systems work well for Purple dead-nettle as they apply water evenly and directly to the soil. For one Purple dead-nettle that grows in a container, you can use a similar watering approach while changing the tools you use. To water a container-grown Purple dead-nettle, use a cup, watering can, or your tap to apply water directly to the soil.

What should I do if I water my Purple dead-nettle too much or too little?

The remedy for underwatering Purple dead-nettle is somewhat obvious. When you notice that your plant lacks moisture, simply begin watering it on a more regular basis. The issue of overwatering can be a much more dire situation, especially if you fail to notice it early. When your Purple dead-nettle is overwatered, it may contract diseases that lead to its decline and death. The best way to prevent this outcome is to choose a proper growing location, one that receives plenty of sunlight to help dry the soil and has good enough drainage to allow excess water to drain rather than pooling and causing waterlogged soils. If you overwater your Purple dead-nettle that lives in a pot, you may need to consider changing it to a new pot. Your previous container may not have contained soil with good drainage or may not have had sufficient drainage holes. As you repot your overwatered Purple dead-nettle, make sure to add loose soils and to use a pot that drains efficiently.

How often should I water my Purple dead-nettle?

Purple dead-nettle needs water regularly throughout the growing season. Beginning in spring, you should plan to water this plant about once per week. As the season presses on and grows warmer, you may need to increase your watering rate to about two to three times per week. Exceeding at this rate can be detrimental to your Purple dead-nettle. With that said, you should also ensure that the soil in which your Purple dead-nettle grows remains relatively moist but not wet, regardless of how often you must water to make that the case. Watering Purple dead-nettle that lives in a pot is a bit different. Generally, you'll need to increase your watering frequency, as the soil in a pot can heat up and dry out a bit faster than ground soil. As such, you should plan to water a container-grown Purple dead-nettle a few times per week in most cases, versus just once per week for an in-ground plant.

How much water does my Purple dead-nettle need?

There are a few different ways you can go about determining how much water to give to your Purple dead-nettle. Some gardeners choose to pick their water volume based on feeling the soil for moisture. That method suggests that you should water until you feel that the first six inches of soil have become moist. Alternatively, you can use a set measurement to determine how much to water your Purple dead-nettle. Typically, you should give your Purple dead-nettle about two gallons of water per week, depending on how hot it is and how quickly the soil becomes dry. However, following strict guidelines like that can lead to overwatering if your plant requires less than two gallons per week for whatever reason. When growing Purple dead-nettle in a container, you will need to use a different method to determine how much water to supply. Typically, you should give enough water to moisten all of the layers of soil that have become dry. To test if that is the case, you can simply stick your finger in the soil to feel for moisture. You can also water the soil until you notice a slight trickle of excess water exiting the drainage holes of your pot.

How can I tell if i'm watering my Purple dead-nettle enough?

It can be somewhat difficult to avoid overwatering your Purple dead-nettle. On the one hand, these plants have relatively deep roots that require you to moisten the soil weekly. On the other hand, Purple dead-nettle are plants that are incredibly susceptible to root rot. Along with root rot, your Purple dead-nettle may also experience browning as a result of overwatering. Underwatering is far less likely for your Purple dead-nettle as these plants can survive for a while in the absence of supplemental watering. However, if you go too long without giving this plant water, it will likely begin to wilt. You may also notice dry leaves.

How should I water my Purple dead-nettle through the seasons?

You can expect your Purple dead-nettle’s water needs to increase as the season moves on. During spring, you should water about once per week. Then, as the summer heat arrives, you will likely need to give a bit more water to your Purple dead-nettle, at times increasing to about three times per week. This is especially true of Purple dead-nettle that grow in containers, as the soil in a container is far more likely to dry out faster than ground soil when the weather is warm. In autumn, while your Purple dead-nettle is still in bloom, it may need a bit less water as the temperature has likely declined, and the sun is no longer as strong as it was in summer.

How should I water my Purple dead-nettle at different growth stages?

Purple dead-nettle will move through several different growth stages throughout the year, some of which may require more water than others. For example, you will probably start your Purple dead-nettle as a seed. While the seed germinates, you should plant to give more water than your Purple dead-nettle will need later in life, watering often enough to maintain consistent soil moisture. After a few weeks, your Purple dead-nettle will grow above the soil and may need slightly less water than at the seedling phase. Then, once this plant is mature, you can begin to use the regular watering frequency of about once per week. As flower development takes place, you may need to give slightly more water to aid the process.

What's the difference between watering Purple dead-nettle indoors and outdoors?

There are several reasons why most Purple dead-nettle grow outdoors rather than indoors. The first is that these plants typically grow to tall. The second reason is that Purple dead-nettle needs more daily sunlight than most indoor growing locations can provide. If you are able to provide a suitable indoor growing location, you may find that you need to give your Purple dead-nettle water a bit more often than you would in an outdoor growing location. Part of the reason for this is that indoor growing locations tend to be a lot drier than outdoor ones due to HVAC units. The other reason for this is that soil in containers can dry out relatively quickly as well compared to soil in the ground.

How much sunlight should Purple dead-nettle get per day to grow healthily?

You must expose the plants to at least 6 to 8 hours of sunlight daily. They prefer more exposure to the morning light, especially in the summer. The Purple dead-nettle needs full sun and more sunlight that it can get. The more light these species get, the more they can manufacture food, produce beautiful blooms, and survive.

What type of sunlight does Purple dead-nettle need?

The Purple dead-nettle grows best under full sunlight. It's best not to crowd them together so they can get exposure to the sun evenly. The leaves shouldn't be starved with sunlight. If planted in pots, try to expose the herbaceous flowers in windows with direct sun and ensure they receive full sunlight regardless of the months. They don't tend to do well in partial or filtered light as this will not produce strong stems and healthy flowers. It's best if the Purple dead-nettle is always exposed to the sun.

Can sunlight hurt plants? How to protect Purple dead-nettle from sun and heat damage?

When the temperature rises above 90℉(32℃), the Purple dead-nettle can get damaged by extreme temperatures, especially if they are exposed to many hours of sun. It's always ideal for providing some shade from the light in the afternoon in the summer. It's always important to keep in mind that the sunlight in the summer is stronger than the one in the winter. Sunlight exposure is also 50% longer in the summer than in the winter. If the Purple dead-nettle is too stressed with sunlight, you might want to keep them fully hydrated. Water them when the top of the soil is about 2 inches dry, and move the plants indoors if it's too hot outside. This is the case if they are planted in containers. It can be normal for the plant leaves to wilt during the day. Generally, they can recover at night. However, when you notice that the Purple dead-nettle is still drooping, this means that the plant is losing water fast, and you need to water them.

Should I protect Purple dead-nettle from sun exposure?

The Purple dead-nettle does not need any protection from the sun. In fact, they love the sun, and some species are heliotropic. Plant them in south-facing gardens whenever possible so they can be exposed from morning to afternoon. While the sun can benefit them, some may experience a sunburn. You might offer protection from the afternoon and midday sun through a shade of a tree or a wall. Growing the Purple dead-nettle in shady areas is impossible because the larger flowers would require a lot of energy to grow and produce. Always provide the lighting conditions and set them in an area with full sun for best results.

What will happen if Purple dead-nettle gets inadequate sunlight?

When the Purple dead-nettle does not get adequate sunlight, or they are not placed in full sun locations, it's worth noting that the photosynthetic process will slow down. A lack of sunlight will cause the stems to become more leggy since they become thin and long since they tend to seek too much sunlight. They will not bloom and produce seeds in the shade. Inadequate sunlight will also mean that the older leaves can die, the color of the new ones is lighter than the old foliage, and the new growth is smaller than the last ones. The Purple dead-nettle indeed loves the sun so much. However, they can wilt when exposed to excessive heat and ultraviolet light during the extreme summer months, so be careful. You might want to cover them with a net that has a green shade, especially in the summer, to prevent the leaves and the flowers from scorching. When they are indoors, reduce the heat with the help of a fan.

Does Purple dead-nettle need special care about sunlight during its different growth stages?

When the Purple dead-nettle is growing, they need more light than their mature counterparts. The younger ones should receive adequate light, but they might not be prepared for sudden full sunlight, especially if they are grown in a nursery. They can be more sensitive to the summer sun, so the lighting should be gradual and slow.

How much light does Purple dead-nettle need for photosynthesis?

During summer or late spring, the Purple dead-nettle needs 6 to 8 hours of direct light every single day. This is whether they are planted outdoors. If the Purple dead-nettle is planted in pots or you're growing them in the winter, they need direct fluorescent lights that help them grow better. Make sure to place them in an indoor area where they are facing south or east so they can have enough sunlight for photosynthesis.

Are there any cautions or tips for sunlight and Purple dead-nettle?

When transplanting the plants, they should not be exposed to sudden sunlight. Give the Purple dead-nettle to grow and mature before transplanting outside. Some species of herbaceous plants can grow taller and might cast a shade on other young plants. Allow between 80 to 100 days of growing season before planting another batch to ensure that every plant receives more than enough sunlight for at least 6 hours a day. Make sure that the Purple dead-nettle receives the best light possible, especially if it's planted in a nursery. These are sun-loving plants, but too much sunlight with a very hot temperature is also detrimental to their growth. Indoor lights should be replaced with natural sunlight as much as possible since these species crave this every day.

What is the optimal temperature for Purple dead-nettle?

The best temperature for Purple dead-nettle depends on the time of year. There are two primary seasons to discuss for temperature: the growing season, and the dormancy season. During the growing season, once Purple dead-nettle has begun to sprout, the ideal temperature range should be anywhere from 65~80℉(18~27℃). Any colder than 15℉(-10℃), and the plant will suffer; its leaves may brown and wilt, but if this is a short cold snap, then Purple dead-nettle may be able to survive with some help. During the warmer parts of the year, Purple dead-nettle will need to be similarly protected from temperatures that are too high. 95-105℉ (35-40℃) is the top of this plant’s temperature range, and anything above that will compromise the integrity of the foliage and blooms of Purple dead-nettle. Hotter temperatures can cause wilting, drooping, and even sunburn on the leaves, which can be difficult for Purple dead-nettle to recover from. There are quite a few ways to combat this issue that are quick and easy!

Temperature requirements for first year or seedling Purple dead-nettle

If this is the first year of your Purple dead-nettle outside as a new plant, then it may need a little extra tending during the coldest months of the year. Not only can frost more severely damage a first-year Purple dead-nettle, but it can also prevent it from growing back as a healthy plant come spring. This plant needs to be kept at 40℉(5℃) or above when they’re not yet established, which can be done either by bringing your Purple dead-nettle inside for a month or two, or putting up mulch or fabric barriers that protect from frost damage. It’s also a good idea to plant Purple dead-nettle in a shadier spot during the first year or two, as smaller and weaker plants have a more difficult time maintaining their own temperatures in the heat. First-year Purple dead-nettle should receive no more than five hours of direct sunlight per day, particularly if the ambient daytime temperature gets above 80℉(27℃). Shadecloth and frequent watering or misting are the keys to summer heat control.

How can I protect Purple dead-nettle from extreme temperatures?

If cold temperatures (below 15℉(-10℃)) do occur during the growing season, there are a few measures you can take to help protect Purple dead-nettle from frost or cold damage. If you’re growing Purple dead-nettle in a container, then the container can simply be brought inside in bright, indirect light until the temperatures rise up over the lower threshold again. Another option that’s better suited for ground-planted Purple dead-nettle is to use mulch or horticultural fabric to create an insulated barrier around the plant, which will protect the plant from frost and cold wind. For temperatures that are hotter than 80℉(27℃) in the shade during the day, be careful to only expose Purple dead-nettle to six hours or less of sunlight per day, preferably in the morning hours. Putting up shade cloth, or a fine plastic mesh, can help reduce the amount of direct sunlight that hits the plant during the hottest parts of the day. You can also install a misting system that allows for a slow release of cooling mist around the base of the plant during the day to lower ground temperatures.

Dormant season temperature recommendations for Purple dead-nettle

During the cold winter months, Purple dead-nettle needs a certain measure of cold in order to stay in dormancy until it’s time to sprout. Sprouting too early, that is before the danger of the last frost has passed, can be fatal to Purple dead-nettle, especially if it’s already had a head start when the frost hits. Winter temperatures should ideally stay below 32℉(0℃), but if they get up to 40℉(5℃), everything will be just fine. An unexpected warm spell during the cold months, which can happen in more temperate climates like woodland rainforests, can trigger a premature sprout from Purple dead-nettle. In this case, if there’s still imminent danger of frost, you may want to try covering it with clear plastic on stakes so that the cold has less of a chance of damaging the new sprout. This setup can be removed when the danger of frost has passed. Occasionally, Purple dead-nettle will be able to resprout at the correct time without any help, but this method increases the chances of a successful second sprouting.

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More Info on Purple Dead-nettle Growth and Care

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Basic Care Guide

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Water

Every week

Purple dead-nettle comes from Europe and Asia, where it can be found in various habitats such as meadows, forests, and disturbed areas. It prefers moderately moist soil and can tolerate both sun and shade. Given its native environment, it benefits from regular watering to mimic the average rainfall it receives. While it can tolerate drier conditions, consistent watering is recommended to maintain optimal growth and prevent the soil from drying out completely.

Watering Techniques

Lighting

Full sun

The purple dead-nettle thrives under copious exposure to light and can endure moderately lit conditions, aligning with its original habitat where the luminosity is quite intense. Sunlight bolsters its health and growth, but overexposure or too little light can impair the plant's vitality due to excess or deficiency.

Best Sunlight Practices

Transplant

1 foot

The perfect time period to transplant purple dead-nettle is from late spring to early autumn (S3-S5) due to optimal growth conditions. The ideal environment for this plant is partial shade to full sun locations. A friendly tip: consider well-drained soil for a successful transplant.

Transplant Techniques

Temperature

0 - 38 ℃

Purple dead-nettle is native to environments that regularly maintain a temperature range of 68 to 95 °F (20 to 35 °C). Its preference for warmer climates suggests that it may need indoor protection or warmer garden spots when temperatures drop below this range in colder seasons.

Temp for Healthy Growth

Pollination

Easy

Purple dead-nettle boasts a vibrant allure, attracting bees as its primary pollinators with its purple-hued bloom, rich in nectar and pollen. The pollination process is entomophilous, meaning insects drive it. Bees, drawn to its striking color and pleasant aroma, transfer pollen from the male to female flowers, facilitating fertilization. Timing is typically during the plant's flowering period in spring.

Pollination Techniques

Feng shui direction

South

The purple dead-nettle aligns harmoniously with South-facing areas of your dwelling. Its vivacious purple hue, in Feng Shui, embodies Fire energy, synergistic with the southern element of Fire. However, perceptions of Feng Shui are deeply personal, and interpretations could vary.

Fengshui Details

Plants Related to Purple dead-nettle

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The deodar cedar is a fine-textured evergreen tree that's one of the most graceful conifers in many landscapes. It produces an aromatic oil that deters many insects but is home to birds and woodpeckers. In the Hindu religion, it's considered a sacred tree. Its specific epithet, deodara, is derived from the Sanskrit language, meaning "the wood of the gods."

Pink knotweed

Pink knotweed (Persicaria capitata) is an evergreen perennial plant that grows up to 15 cm tall and 1.5 m long. Pink knotweed grows best in full sun and thrives in a variety of soil conditions. Pink knotweed is often cultivated as ground cover. It is considered an invasive weed in some regions.

Common daisy

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Santa Maria feverfew

Parthenium hysterophorus or santa Maria feverfew is also called famine weed. It is an invasive weed that can disrupt the health of crops, pasture, livestock, and humans. A substance in the plant, called parthenin, is highly toxic and can cause dermatitis and breathing difficulties in humans and animals.

Sisal

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Green foxtail

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Poison ivy

In pop culture, poison ivy is a symbol of an obnoxious weed because, despite its unthreatening looks, it gives a highly unpleasant contact rash to the unfortunate person who touches it. Still, it is commonly eaten by many animals, and the seeds are a favorite with birds. The leaves turn bright red in fall. Its sister species, Western poison ivy (Toxicodendron rydbergii), is not considered to be invasive in the United States, but is noxious in Australia and New Zealand.

Pokeweed

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Purple dead-nettle

Lamium purpureum

Purple dead-nettle (Lamium purpureum) is an herbaceous annual weed, commonly found in meadows, wastes, gardens, and at the edges of roads and woodlands. Though it appears similar to true nettles, purple dead-nettle gets its name because it does not have "live" nettle poison that harms the skin. It originated in Asia and prefers environments with full sun.

Hardiness Zones

6 to 9

Weeds

Key Facts About Purple dead-nettle

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Attributes of Purple dead-nettle

Lifespan

Annual, Perennial, Biennial

Plant Type

Herb

Planting Time

Early spring

Bloom Time

Mid spring, Late spring, Early summer, Mid summer

Harvest Time

Spring

Plant Height

5 cm to 30 cm

Spread

20 cm

Leaf Color

Purple

Flower Size

1.02 cm to 2 cm

Flower Color

Purple

Lavender

Stem Color

Red

Purple

Dormancy

Winter dormancy

Leaf type

Deciduous

Ideal Temperature

20 - 35 ℃

Growth Season

Spring, Summer, Fall, Winter

Pollinators

Bees

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Name story

Purple dead-nettle

Though it is similar to species of Urtica (true nettles) in appearance, it is not related to Urtica and does not sting. As the flowers are purple in color, the name is called purple dead-nettle.

Purple archangel

Symbolism

Confidence, courage, happiness, graceful persistence, clear thinking, emotional balance

Trivia and Interesting Facts

Scientific Classification of Purple dead-nettle

Phylum

Vascular plants

Class

Dicotyledons

Order

Mints plantains olives and allies

Family

Mint

Genus

Dead-nettles

Species

Purple dead-nettle

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Weed Control About Purple dead-nettle

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Weeds

How to Control it

Do you have weeds in your garden?

Differentiate them from your plants by a picture, and learn how to control them.

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Distribution of Purple dead-nettle

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Habitat of Purple dead-nettle

Roadsides, waste places, cultivated land

Northern Hemisphere

South Hemisphere

Distribution Map of Purple dead-nettle

Native

Cultivated

Invasive

Potentially invasive

Exotic

No species reported

Questions About Purple dead-nettle

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Watering

Sunlight

Temperature

What is the best way to water my Purple dead-nettle?

What should I do if I water my Purple dead-nettle too much or too little?

How often should I water my Purple dead-nettle?

How much water does my Purple dead-nettle need?

How can I tell if i'm watering my Purple dead-nettle enough?

How should I water my Purple dead-nettle through the seasons?

How should I water my Purple dead-nettle at different growth stages?

What's the difference between watering Purple dead-nettle indoors and outdoors?

How much sunlight should Purple dead-nettle get per day to grow healthily?

What type of sunlight does Purple dead-nettle need?

Can sunlight hurt plants? How to protect Purple dead-nettle from sun and heat damage?

Should I protect Purple dead-nettle from sun exposure?

What will happen if Purple dead-nettle gets inadequate sunlight?

Does Purple dead-nettle need special care about sunlight during its different growth stages?

How much light does Purple dead-nettle need for photosynthesis?

Are there any cautions or tips for sunlight and Purple dead-nettle?

What is the optimal temperature for Purple dead-nettle?

Temperature requirements for first year or seedling Purple dead-nettle

How can I protect Purple dead-nettle from extreme temperatures?

Dormant season temperature recommendations for Purple dead-nettle

Get tips and tricks for your plants.

Keep your plants happy and healthy with our guide to watering, lighting, feeding and more.

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More Info on Purple Dead-nettle Growth and Care

Basic Care Guide

Explore More

Plants Related to Purple dead-nettle

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Indoor

Requirements

Full sun

Ideal

Above 6 hours sunlight

Partial sun

Tolerance

About 3-6 hours sunlight

Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness.

Essentials

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.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.

Important Symptoms

Symptoms of Insufficient Light in %s

Purple dead-nettle, a plant that thrives in full sunlight, is commonly grown outdoors with ample sunlight. When cultivated indoors with inadequate light, it may exhibit subtle symptoms of light deficiency.

(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 purple dead-nettle 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

Purple dead-nettle enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.

Lighter-colored new leaves

Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.

Solutions

1. To ensure optimal growth, gradually move plants to a sunnier location each week, until they receive at least 6 hours of direct sunlight daily. Use a south-facing window and keep curtains open during the day for maximum sunlight exposure and nutrient accumulation.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.

Symptoms of Excessive light in %s

Purple dead-nettle thrives in full sun exposure and can tolerate intense sunlight. With their remarkable resilience, symptoms of sunburn may not be easily visible, as they rarely suffer from it.

(Symptom details and solutions)

Chlorosis

Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.

Sunscald

Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.

Leaf Curling

Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.

Wilting

Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.

Leaf Scorching

Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.

Solutions

1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.

Discover information about plant diseases, toxicity, weed control and more.

Indoor

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

Regional wintering strategies

Purple dead-nettle has strong cold resistance, so special frost protection measures are usually not necessary during winter. However, if the winter temperatures are expected to drop below {Limit_growth_temperature}, it is still important to provide cold protection. This can be achieved by covering the plant with materials such as soil or straw. Before the first freeze in autumn, it is recommended to water the plant abundantly, ensuring the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.

Important Symptoms

Symptoms of Low Temperature in Purple dead-nettle

Purple dead-nettle is cold-tolerant and thrives best when the temperature is above {Suitable_growth_temperature_min}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, although there may not be any noticeable changes during winter, there may be a decrease in sprouting or even no sprouting during springtime.

Solutions

In spring, remove any parts that have failed to sprout.

Symptoms of High Temperature in Purple dead-nettle

During summer, Purple dead-nettle should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the leaves of the plant may become lighter in color, prone to curling, susceptible to sunburn, and in severe cases, the entire plant may wilt and become dry.

Solutions

Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.

Discover information about plant diseases, toxicity, weed control and more.

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Key Facts About Purple dead-nettle

Attributes of Purple dead-nettle

Name story

Symbolism

Trivia and Interesting Facts

Scientific Classification of Purple dead-nettle

Weed Control About Purple dead-nettle

Distribution of Purple dead-nettle

Habitat of Purple dead-nettle

Distribution Map of Purple dead-nettle

Questions About Purple dead-nettle

More Questions People Also Ask

More Info on Purple Dead-nettle Growth and Care

Plants Related to Purple dead-nettle

Key Facts About Purple dead-nettle

Attributes of Purple dead-nettle

Name story

Symbolism

Trivia and Interesting Facts

Scientific Classification of Purple dead-nettle

Weed Control About Purple dead-nettle

Distribution of Purple dead-nettle

Habitat of Purple dead-nettle

Distribution Map of Purple dead-nettle

Questions About Purple dead-nettle

More Questions People Also Ask

More Info on Purple Dead-nettle Growth and Care

Plants Related to Purple dead-nettle