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Basic Care
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FAQ

How to Care for Tree Mallow

Tree mallow (Malva arborea) prefers to grow on exposed coastal areas, as it has a high salinity tolerance and can excrete salt through its leaves. It produces vibrant purple flowers and is native to the British Isles, the western coasts of Europe, the Mediterranean, and parts of North Africa.
Water
Water
Every week
Sunlight
Sunlight
Full sun
Tree mallow
Tree mallow
Tree mallow
Tree mallow
Tree mallow
care_basic_guide

Basic Care Guide

Cultivation:WaterDetail

How to Water Tree mallow?

The tree mallow is a fairly drought-tolerant plant once fully established. Weekly watering is required only during its first year. After this, your watering regime can be reduced to once every 10-14 days. Alternatively, water an established tree mallow only during its growth and flowering periods when the rain doesn't provide 2.5 cm of water a week. The more water you provide, the lusher the leaves will be.
Cultivation:WaterDetail
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What is the best way to water my Tree mallow?
When watering the Tree mallow, you should aim to use filtered water that is at room temperature. Filtered water is better for this plant, as tap water can contain particles that are harmful to its health. The reason that the water should be at room temperature or slightly warmer is that the Tree mallow comes from a warm environment, and cold water can be somewhat of a shock to its system. Also, you should avoid overhead watering for this plant, as it can cause foliage complications. Instead, simply apply your filtered room temperature water to the soil until the soil is entirely soaked. Soaking the soil can be very beneficial for this plant as it moistens the roots and helps them continue to spread through the soil and collect the nutrients they need.
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What should I do if I water my Tree mallow too much or too little?
Both overwatering and underwatering will be detrimental to the health of your Tree mallow, but overwatering is a far more common issue. When this species receives too much water, its stems and leaves may begin to wilt and turn from green to yellow. Overwatering over a prolonged period may also lead to diseases such as root rot, mold, and mildew, all of which can kill your plant. Underwatering is far less common for the Tree mallow, as this plant has decent drought tolerance. However, underwatering remains a possibility, and when it occurs, you can expect to find that the leaves of your Tree mallow have become brittle and brown.
It is crucial that you notice the signs of overwatering as soon as possible when caring for your Tree mallow. Some of the diseases that arise from overwatering, such as root rot, may not be correctable if you wait too long. If you see early signs of overwatering, you should reduce your watering schedule immediately. You may also want to assess the quality of soil in which your Tree mallow grows. If you find that the soil drains very poorly, you should replace it immediately with a loose, well-draining potting mix. On the other hand, if you find signs that your Tree mallow is receiving too little water, all you need to do is water more regularly until those signs have subsided.
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How often should I water my Tree mallow?
If your plant is in a pot. The most precise way to decide whether your Tree mallow needs water is to plunge your finger into the soil. If you notice that the first two to three inches of soil have become dry, it is time to add some water.
If you grow your Tree mallow outdoors in the ground, you can use a similar method to test the soil. Again, when you find that the first few inches of soil have dried out, it is time to add water. During the spring and early fall, this method will often lead you to water this plant about once every week. When extremely hot weather arrives, you may need to increase your watering frequency to about twice or more per week. With that said, mature, well-established the Tree mallow can show an admirable ability to withstand drought.
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How much water does my Tree mallow need?
When it comes time to water your Tree mallow, you should not be shy about how much water you give. With the first two to three inches of soil dry, this plant will appreciate a long and thorough watering. Supply enough water to soak the soil entirely. The amount of water you add should be enough to cause excess water to flow through the drainage holes at the bottom of your pot. If you don’t see excess water draining from the pot, you have likely underwatered your plant. But do not let the water accumulate inside the soil, which will be very dangerous to the plant as well. Alternatively, a lack of water draining through the pot could indicate poorly draining soils, which is detrimental to the health of this plant and should be avoided. If the plant is outside, 1 inch of rain per week will be sufficient.
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How should I water my Tree mallow at different growth stages?
The water needs of the Tree mallow can change depending on growth stages as well. For example, when your Tree mallow is in the first few years of its life, or if you have just transplanted it to a new growing location, you will need to give more water than usual. During both of those stages, your Tree mallow will put a lot of energy towards sprouting new roots that will then support future growth. For those roots to perform their best, they need a bit more moisture than they would at a more mature phase. After a few seasons, your Tree mallow will need much less water. Another growth stage in which this plant may need more water is during the bloom period. Flower development can make use of a significant amount of moisture, which is why you might need to give your Tree mallow more water at this time.
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How should I water my Tree mallow through the seasons?
The Tree mallow will have its highest water needs during the hottest months of the year. During the height of summer, you may need to give this plant water more than once per week, depending on how fast the soil dries out. The opposite is true during the winter. In winter, your plant will enter a dormant phase, in which it will need far less water than usual. In fact, you may not need to water this plant at all during the winter months. However, if you do water during winter, you should not do so more than about once per month. Watering too much at this time will make it more likely that your Tree mallow will contract a disease.
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What's the difference between watering my Tree mallow indoors and outdoors?
It is most common to grow the Tree mallow indoors for any gardener that does not live in temperate and tropical regions. Those gardeners should consider the fact that soil in a container can dry out a bit faster than ground soil. Also, the presence of drying elements such as air conditioning units can cause your Tree mallow to need water on a more frequent basis as well. if you planted it outside. When that is the case, it’s likely you won’t need to water your Tree mallow very much at all. If you receive rainfall on a regular basis, that may be enough to keep your plant alive. Alternatively, those who grow this plant inside will need to water it more often, as allowing rainwater to soak the soil will not be an option.
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Cultivation:FertilizerDetail

How to Fertilize Tree mallow?

The hardy tree mallow will benefit greatly from an annual fertilizing. Feed with a quality, slow-release fertilizer in late winter or early spring. A well-balanced fertilizer, with an N:P:K ratio of 10:10:10, is a good choice. Water generously after fertilizing. Alternatively, a natural organic plant food can be added. You can also mix some organic compost into the soil when planting your tree mallow to enrich it and regulate drainage.

Fertilizer

Tree mallow grow throughout many regions of the world and are often some of the best plants to use for foliage gardens. If you want to reap the full benefits of growing a Tree mallow, in your garden, you should understand the basics of its care routine, with special consideration for fertilization. The information below will answer some of the most important questions related to fertilizing a Tree mallow.
The leaves of the Tree mallow comprise most of its main structure, and fertilization is one of the most impactful ways that you can ensure that those leaves look great while also serving their function. Proper fertilization will help your Tree mallow hold leaves with consistent color and a healthy texture. Fertilization also works below the soil's surface to help your Tree mallow generate new roots and maintain the roots that are already part of the root system. This means that fertilization will not just keep your plant healthy now, but it will also help your plant be better capable of absorbing soil nutrients in the future.
If you grow your Tree mallow outdoors each year, this perennial plant will send new growth shooting out in early spring. The emergence of those leaves is a sign that the time is right to begin fertilization for the year. Often, a Tree mallow will perform just fine with a single application of fertilizer when the spring arrives. However, if you wish to maximize the growth of your Tree mallow, you can repeat the feeding multiple times throughout the spring and early summer. If you choose this route, you can feed your Tree mallow about once every month to a month and a half.
Fortunately, choosing the best fertilizer for a Tree mallow is a very straightforward task. These plants will thrive on a general-purpose garden fertilizer that has equal amounts of nitrogen, phosphorus, and potassium. A fertilizer that has a ratio of 10-10-10 or something similar will be very effective. When in doubt, be sure to avoid fertilizers that have high amounts of nitrogen.
Most of the best fertilizer for a Tree mallow will come in a granular form. These fertilizers should be slow-release and will be very easy to apply to the soil. It can also be helpful to feed your Tree mallow using an organic soil amendment such as compost.
Wait until your Tree mallow has just barely poked its first leaves through the soil's surface in early spring. Once you see that sign, apply a granular slow-release fertilizer with a balanced formula to the soil that surrounds the base of your Tree mallow. You can repeat a similar process later in the season if you choose. When reapplying fertilizer to a Tree mallow, you should, again, apply the fertilizer to the soil at the base of the plant rather than to the plant itself. At times, this may require you to move some leaves out of the way to access the soil above the roots. It's also often a good choice to water your Tree mallow before and after you feed it.
The Tree mallow doesn't necessarily need to receive high volumes of fertilizer each year, which means overfertilization is entirely possible. If you overfertilize your Tree mallow, you will likely notice first that the leaves have turned brown.
Overfertilization of Tree mallow is especially common if you use a fertilizer that has higher concentrations of nitrogen. High nitrogen content will likely cause the leaves of your Tree mallow to become discolored, lose much of their moisture, and begin curling at the margins. Many gardeners avoid such complications by limiting fertilization of their Tree mallow to once per year in early spring.
In the late fall and winter, your Tree mallow will enter a dormant phase in which it will no longer produce new growth. At this time, you should avoid fertilizing your Tree mallow. If you choose to fertilize multiple times during spring and summer, you should begin reducing your fertilization rate as summer approaches, as your Tree mallow 's growth rate will also slow.
Overall, it is never a wise choice to fertilize your Tree mallow during times when the weather is unseasonably hot or when the soil is extraordinarily dry. Fertilizing in either of those cases can stress your Tree mallow and cause it to perish prematurely.
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Cultivation:FertilizerDetail
Why do I need to fertilize my Tree mallow?
The leaves of the Tree mallow comprise most of its main structure, and fertilization is one of the most impactful ways that you can ensure that those leaves look great while also serving their function. Proper fertilization will help your Tree mallow hold leaves with consistent color and a healthy texture.
Fertilization also works below the soil's surface to help your Tree mallow generate new roots and maintain the roots that are already part of the root system. This means that fertilization will not just keep your plant healthy now, but it will also help your plant be better capable of absorbing soil nutrients in the future.
Read More more
When is the best time to fertilize my Tree mallow?
If you grow your Tree mallow outdoors each year, this perennial plant will send new growth shooting out in early spring. The emergence of those leaves is a sign that the time is right to begin fertilization for the year.
Often, a Tree mallow will perform just fine with a single application of fertilizer when the spring arrives. However, if you wish to maximize the growth of your Tree mallow, you can repeat the feeding multiple times throughout the spring and early summer. If you choose this route, you can feed your Tree mallow about once every month to a month and a half.
Read More more
When should I avoid fertilizing my Tree mallow?
In the late fall and winter, your Tree mallow will enter a dormant phase in which it will no longer produce new growth. At this time, you should avoid fertilizing your Tree mallow. If you choose to fertilize multiple times during spring and summer, you should begin reducing your fertilization rate as summer approaches, as your Tree mallow 's growth rate will also slow.
Overall, it is never a wise choice to fertilize your Tree mallow during times when the weather is unseasonably hot or when the soil is extraordinarily dry. Fertilizing in either of those cases can stress your Tree mallow and cause it to perish prematurely.
Read More more
What type of fertilizer does my Tree mallow need?
Fortunately, choosing the best fertilizer for a Tree mallow is a very straightforward task. These plants will thrive on a general-purpose garden fertilizer that has equal amounts of nitrogen, phosphorus, and potassium. A fertilizer that has a ratio of 10-10-10 or something similar will be very effective. When in doubt, be sure to avoid fertilizers that have high amounts of nitrogen.
Most of the best fertilizer for a Tree mallow will come in a granular form. These fertilizers should be slow-release and will be very easy to apply to the soil. It can also be helpful to feed your Tree mallow using an organic soil amendment such as compost.
Read More more
How do I fertilize my Tree mallow?
Wait until your Tree mallow has just barely poked its first leaves through the soil's surface in early spring. Once you see that sign, apply a granular slow-release fertilizer with a balanced formula to the soil that surrounds the base of your Tree mallow.
You can repeat a similar process later in the season if you choose. When reapplying fertilizer to a Tree mallow, you should, again, apply the fertilizer to the soil at the base of the plant rather than to the plant itself. At times, this may require you to move some leaves out of the way to access the soil above the roots. It's also often a good choice to water your Tree mallow before and after you feed it.
Read More more
What happens if I fertilize my Tree mallow too much?
The Tree mallow doesn't necessarily need to receive high volumes of fertilizer each year, which means overfertilization is entirely possible. If you overfertilize your Tree mallow, you will likely notice first that the leaves have turned brown.
Overfertilization of Tree mallow is especially common if you use a fertilizer that has higher concentrations of nitrogen. High nitrogen content will likely cause the leaves of your Tree mallow to become discolored, lose much of their moisture, and begin curling at the margins. Many gardeners avoid such complications by limiting fertilization of their Tree mallow to once per year in early spring.
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Cultivation:SunlightDetail

What Are the Sunlight Requirements for Tree mallow?

The tree mallow generally requires full sun exposure. It may thrive under partial shade, but this will negatively reflect on its blooms. A plant that is shaded will produce fewer flowers, so try to provide at least six hours of full sun a day. If provided with enough sunlight, your tree mallow will not need to be staked.
Cultivation:SunlightDetail
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What type of sunlight does Tree mallow need?
Tree mallow needs full sun every day, and these plants rely on a minimum of six hours of sunlight to keep their leaves, roots, and blooms in a healthy state. Even though most perennials need six hours of sunlight a day, plants like the Orange Daylily or Giant Coreopsis could live off less sun for a minimum of three hours daily. Even though these perennial flowering plants can live with only three hours of direct sunlight, they won't be able to thrive like they would in sunnier conditions.
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Can sunlight damage Tree mallow? How to protect Tree mallow from the sun and heat damage?
The few Perennial Flowering Plants that don't like excessive heat in warm climates might react poorly to too much sun if they have heat damage. These plants may wilt or dry out from too much sun and may also develop growth issues if they're regularly in the sun during the most intense heat of the day. Some plants don't need protection from the light afternoon sun, but those that are harmed by intense afternoon exposure should be provided some shade in warmer climates. Gardeners could give these plants plenty of shade by planting them in spots that don't receive direct heat during the afternoon, like under trees or behind bushes.
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Should I protect Tree mallow from sun exposure?
While many perennial plants need plenty of sun to bloom to their fullest extent, some of them benefit from less sun in warmer climates. For example, people who live in hotter climates might want to provide shade for their flowering perennials in the hot afternoon sun, and this is even more true for months in the summer.
Even though some perennial flowering plants will benefit from partially shaded in the hottest climates, plants like the Giant Coreopsis aren't intimidated by too much sun. They might sit outside in the full sun in hot weather and still thrive.
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What will happen if Tree mallow gets inadequate sunlight?
If you're growing Tree mallow and you aren't getting enough sunlight, you'll notice signs of inadequate requirements in your plants. Most plants won't produce as many blooms as they would if they had full sun exposure. Some plants will develop dry spots on their leaves, but most of these plants will still bloom in the inadequate sun. Even though they bloom, the flowers will be smaller and less full.
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Does Tree mallow need special care about sunlight during its different growth stages?
Tree mallow is great flowers in gardens and will have optimum blooming if it gets six hours of sunlight a day minimum. Sometimes, flowers stay fresh longer if they're partially shaded during the really hot parts of the day. When Tree mallow is young, gardeners want to ensure their younger plants are getting plenty of sunlight but don't have to endure intense heat during the afternoon sunlight. If you have a fully mature plant, provide it with plenty of sun so it may keep up its growth properly.
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How much light does Tree mallow need for photosynthesis?
Tree mallow will need a minimum of six hours of light to best support their photosynthesis cycles. These flowering plants need the sun to help their foliage and blooms grow. However, certain perennial flowering plants like the Giant Coreopsis might need anywhere from eight to twelve hours of full sun a day to maintain their large flowers and healthy foliage.
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How much light should Tree mallow get per day to grow healthily?
If you want your Tree mallow to grow healthy and bloom as much as possible during its blooming season, you should try to give your plant six hours of direct sunlight. Some perennial plants might even do more sunlight and could sit in the sun for up to twelve hours, depending on the heat in the area and the general environment. Plants like the Red Hot Poker and Giant Coreopsis thrive in much hotter climates and might sit in all types of strong sunlight.
Some home gardeners have to use grow lights because their spaces don't allow for tons of outdoor sunlight. Most perennials could grow happily in grow lights, but they will need anywhere from eight to fourteen hours of artificial light to stay strong since these lights don't have as much power as the sun.
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Cultivation:PruningDetail

How to Prune Tree mallow?

The tree mallow, especially the bushier varieties, benefits from occasional pruning. Trimming should be done in late winter or early spring when the frosts have passed. If freshly pruned plant tissue is exposed to freezing temperatures, it can be damaged by frostbite. Trim the shoots down to the first set of leaves, which will stimulate new and healthy dense growth. Use clean, sharp shears and always disinfect your tools in between the cuts to reduce the chances of possible cross-contamination.
Cultivation:PruningDetail
Is pruning necessary for my Tree mallow?
It is helpful to lightly prune this plant periodically during the spring and summer. When performing this light pruning, you should search for leaves that have wilted, become discolored, show signs of disease, or have died completely. Remove dead or damaged leaves by cutting their petioles, or trimming off stems that have died. This will increase the light and ventilation of the plant and help it to grow. Some gardeners also choose to remove the flower buds of the Tree mallow. However, removing flower buds before they open is a strictly aesthetic decision that will emphasize the beauty of this plant’s showy leaves.
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When should I prune my Tree mallow?
You can prune your Tree mallow any time you notice dead, diseased, or damaged leaves during the growing season. Once you notice such a leave, locate an unwanted leaf, then follow its stem all the way to the bottom of petiole. Removing dead stems will increase the light and ventilation of the plant and help it to grow. you can cut its stem just above the soil’s surface to remove it. Such pruning can take place as needed during spring and summer. Also, this plant can bloom any time between spring and fall, and some gardeners choose to remove flower buds before they have a chance to open. Removing unopened flower buds allows this plant to focus most of its growing energy on its beautiful leaves. However, pruning in this manner does not necessarily influence the plant’s overall health.
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How do I prune my Tree mallow?
Pruning the Tree mallow is as easy as waiting until you notice dead or damaged leaves on your plant. When you recognize these leaves, equip yourself with a pair of sharp and sterile hand pruning shears. Hand pruning shears will work best as larger tools like loppers will not be well suited to the precise cuts you need to make. Once you have a proper set of pruning tools, locate an unwanted leaf, then follow its stem all the way to the bottom of petiole. Removing dead stems will increase the light and ventilation of the plant and help it to grow. Cut the stem just above where it exits the soil to remove it entirely. If you wish to stop this plant from flowering, you can use the same pruning shears to remove any buds before they open. Finally, you may prefer to just trim off dead or damaged portions of the plant, including deadheading spent flowers, to keep it looking its best. This can be done at any time of year. Diseased or damaged stems should be cut right at the soil line and removed completely. Blooms should be cut off just below the flower head.
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What should I do after pruning my Tree mallow?
Since pruning for the Tree mallow should take place periodically throughout the season, what you do after pruning can vary. For instance, if you prune to remove selected leaves and stems from your Tree mallow, you won’t need to do anything except continue your regular maintenance routine. At times, you may choose to remove healthier leaves and include them in a display of cut flowers and foliage. However, there is no crucial maintenance task to perform for this plant after typical pruning. The only thing to note is that when watering after pruning, you need to be careful not to touch the wound to prevent fungus from infecting the plant through the fresh wound. Placing Tree mallow in a well-ventilated location will also help the wounds to dry out and heal in time. The timely replenishment of Tree mallow after pruning will help the Tree mallow to recover as soon as possible.
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Are there any important tips when pruning my Tree mallow?
For your major pruning, use sharp pruning sheers that will make clean cuts to avoid damaging your plants. As you are pruning your Tree mallow, step back occasionally to check the appearance of the plant to make sure it has the shape you want and that you are pruning it symmetrically. If the overall growth of the plant is weak, the flowers need to be pruned back in time for flowering to be able to save nutrients for leaf growth and allow the plant to grow more vigorously.
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care_advanced_guide

Advanced Care Guide

Cultivation:WaterAndHardinessDetail

What is the Ideal Temperature Range for Tree mallow?

The tree mallow can grow under a broad range of temperature conditions, with bushier varieties usually able to handle warmer temperatures. This is a hardy plant, able to withstand a winter that drops down to -40 ℃. Some varieties, like the Tree tree mallow, can handle drought well once established, and will burst back into life when the rains return.
Cultivation:WaterAndHardinessDetail
What is the optimal temperature for Tree mallow?
The best temperature for Tree mallow 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 Tree mallow 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 Tree mallow may be able to survive with some help.
During the warmer parts of the year, Tree mallow 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 Tree mallow. Hotter temperatures can cause wilting, drooping, and even sunburn on the leaves, which can be difficult for Tree mallow to recover from. There are quite a few ways to combat this issue that are quick and easy!
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Temperature requirements for first year or seedling Tree mallow
If this is the first year of your Tree mallow 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 Tree mallow, 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 Tree mallow 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 Tree mallow 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 Tree mallow 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.
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How can I protect Tree mallow 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 Tree mallow from frost or cold damage. If you’re growing Tree mallow 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 Tree mallow 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 Tree mallow 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.
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Dormant season temperature recommendations for Tree mallow
During the cold winter months, Tree mallow 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 Tree mallow, 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 Tree mallow. 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, Tree mallow 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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Cultivation:SoilDetail

What Soil is Best for Tree mallow?

The tree mallow is not picky about its growing substrate. It can handle both clay and sandy soils and will adapt to most gardens. It doesn't necessarily require rich organic soils, and fertilizers are not a must. It will grow in neutral soil, but most will thrive if the soil pH is around 7.0.
Cultivation:SoilDetail
Cultivation:PlantingDetail

How to Plant Tree mallow?

plant your tree mallow in late summer or early fall. If planting in pots or in the garden, mix in some organic compost to regulate water retention. The tree mallow is easily grown from seed. Choose a location that provides well-draining but moist soil and full sun. Sow shallow, cover the seed with a light soil layer, and keep the substrate constantly moist until germination. Pinch back new-growth tips when they reach about 30 cm to stimulate more compact growth.
Cultivation:PlantingDetail
care_scenes

More Info on Tree Mallow Growth and Care

Basic Care Guide
Lighting
Full sun
Tree mallow has a preference for heavily sunlit environments for flourishing growth. The plant's original habitat consists of surroundings that receive ample sunlight throughout the day. Extremely limited sunlight might hinder its proper development, while overexposure hasn't been reported as detrimental.
Best Sunlight Practices
Temperature
0 - 38 ℃
Tree mallow is native to regions with moderate climates. Its ideal temperature for growth lies between 68 to 95 °F (20 to 35 ℃). In extremely hot or cold seasons, provide shade or shelter to modulate temperature exposure.
Temp for Healthy Growth
care_pet_and_diseases

Common Pests & Diseases

Common issues for Tree mallow 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.
Aged yellow and dry
Aged yellow and dry Aged yellow and dry
Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Solutions: If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
Leaf rot
Leaf rot Leaf rot
Leaf rot
This pathogen can cause the leaves to rot.
Solutions: Bacterial infections need to be treated quickly to prevent the spread to neighboring, healthy plants, potentially wiping out large sections of your indoor or outdoor garden. In mild cases: Use sterilized (10% bleach solution) pruning shears or scissors to remove any infected plant parts, making sure to dispose of them off site. Use a copper-based bactericide to treat the unaffected foliage, as well as the soil, and neighboring plants. Follow the manufacturer’s rate and timing directions found on the product label. In severe cases, where more than half the leaves are affected: Remove all of the infected plants from the garden, disposing of them off site. Treat the soil and neighboring plants using a copper-based bactericide. Follow the manufacturer’s rate and timing directions found on the product label.
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Caterpillars
plant poor
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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Aged yellow and dry
plant poor
Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Overview
Overview
Regardless of the type of plant or where it is grown, at some point, it will begin to aged yellow and dry. This is a natural, unavoidable process that happens when the plant has completed all of the steps in its life.
Annual plants go through this process at the end of a single growing season. Perennial plants live for multiple years, if not tens or hundreds of years, but will still ultimately exhibit these symptoms.
Symptom Analysis
Symptom Analysis
When plants have progressed through their natural developmental stages and are nearing the end of their lifecycle, they begin showing signs of decline. Leaves will start to yellow and droop, and over time they turn papery brown and dry.
Once completely dry, the leaves begin to fall from the plant until the entire plant has dried out.
Disease Cause
Disease Cause
At the end of its life, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence or natural aging and death. Cell division stops, and the plant begins catabolizing resources to use in other parts of the plant.
As this happens, the tissues begin yellow and drying until the entire plant is desiccated and perishes.
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Leaf rot
plant poor
Leaf rot
This pathogen can cause the leaves to rot.
Overview
Overview
Leaf rot is very common among both house plants and garden plants. It affects foliage and occurs mainly when the leaves become wet due to rain or misting by the gardener. The cause is fungal disease and this is facilitated by the fungal spores adhering to wet leaves then penetrating the leaf and expanding rapidly. Damp conditions and poor air circulation will increase chances of infection taking place. Another factor are leaves that are damaged or have been penetrated by sap sucking insects that facilitate plant penetration.
Symptom Analysis
Symptom Analysis
  1. Spores are able to cling to a damp leaf and penetrate, often through an existing wound.
  2. A small dark brown mark appears which expands rapidly as sporulation starts to take place.
  3. Quite quickly these bull's eye like circles can link together and the whole leaf turns dark and loses texture.
  4. Leaf drop occurs.
Disease Cause
Disease Cause
These symptoms are caused by a bacterial infection invading the plant. Bacteria from many sources in the environment (air, water, soil, diseased plants) enter a plant through wounds, or in some cases the stomata when they are open. Once inside the leaf tissue, the bacteria feed and reproduce quickly, breaking down healthy leaves.
Bacterial infections threaten most plant species, and are more prominent in wet weather that more easily transfers the bacteria from plant to plant, or from soil to plant.
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More About Tree Mallow

Plant Type
Plant Type
Herb
Lifespan
Lifespan
Perennial, Annual, Biennial
Spread
Spread
2 m
Bloom Time
Bloom Time
Spring, Summer, Late winter
Flower Color
Flower Color
Pink
Purple
Plant Height
Plant Height
50 to 300 cm

Usages

Garden Use
Although tree mallow is a biennial plant, in gardens, it is commonly grown as an annual because it flowers only during its first year. That is why it is used in containers and as an annual bedding plant, rather than within any lasting garden arrangements. The flowers that are its primary value are hibiscus-like, trumpet-shaped, purple to pink in color. Additionally, tree mallow makes a fine cut flower.
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Common Problems

My common tree mallow is turning brown. Why is this happening?

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This is probably the result of heat stress. Even though the tree mallow is relatively drought-tolerant, prolonged hot periods may damage it. Prune back the dying stems to the first flower row and water generously.

My tree mallow has yellowing leaves and only a few blooms, what can I do?

more more
It sounds like your tree mallow is lacking in sunlight. Remember that the tree mallow needs full sun exposure and at least six hours of it. If possible, move the plant to a more suitable position and mix in some organic compost with the soil, to give it a little boost and help it to regain its vigor.
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About
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Tree mallow
Tree mallow
Tree mallow
Tree mallow
Tree mallow

How to Care for Tree Mallow

Tree mallow (Malva arborea) prefers to grow on exposed coastal areas, as it has a high salinity tolerance and can excrete salt through its leaves. It produces vibrant purple flowers and is native to the British Isles, the western coasts of Europe, the Mediterranean, and parts of North Africa.
Water
Every week
Water
Sunlight
Full sun
Sunlight Sunlight detail
care_basic_guide

Basic Care Guide

Cultivation:WaterDetail

How to Water Tree mallow?

Cultivation:WaterDetail
The tree mallow is a fairly drought-tolerant plant once fully established. Weekly watering is required only during its first year. After this, your watering regime can be reduced to once every 10-14 days. Alternatively, water an established tree mallow only during its growth and flowering periods when the rain doesn't provide 2.5 cm of water a week. The more water you provide, the lusher the leaves will be.
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What is the best way to water my Tree mallow?
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How much water does my Tree mallow need?
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Cultivation:FertilizerDetail

How to Fertilize Tree mallow?

Cultivation:FertilizerDetail
The hardy tree mallow will benefit greatly from an annual fertilizing. Feed with a quality, slow-release fertilizer in late winter or early spring. A well-balanced fertilizer, with an N:P:K ratio of 10:10:10, is a good choice. Water generously after fertilizing. Alternatively, a natural organic plant food can be added. You can also mix some organic compost into the soil when planting your tree mallow to enrich it and regulate drainage.
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Fertilizer

Tree mallow grow throughout many regions of the world and are often some of the best plants to use for foliage gardens. If you want to reap the full benefits of growing a Tree mallow, in your garden, you should understand the basics of its care routine, with special consideration for fertilization. The information below will answer some of the most important questions related to fertilizing a Tree mallow.
The leaves of the Tree mallow comprise most of its main structure, and fertilization is one of the most impactful ways that you can ensure that those leaves look great while also serving their function. Proper fertilization will help your Tree mallow hold leaves with consistent color and a healthy texture. Fertilization also works below the soil's surface to help your Tree mallow generate new roots and maintain the roots that are already part of the root system. This means that fertilization will not just keep your plant healthy now, but it will also help your plant be better capable of absorbing soil nutrients in the future.
If you grow your Tree mallow outdoors each year, this perennial plant will send new growth shooting out in early spring. The emergence of those leaves is a sign that the time is right to begin fertilization for the year. Often, a Tree mallow will perform just fine with a single application of fertilizer when the spring arrives. However, if you wish to maximize the growth of your Tree mallow, you can repeat the feeding multiple times throughout the spring and early summer. If you choose this route, you can feed your Tree mallow about once every month to a month and a half.
Fortunately, choosing the best fertilizer for a Tree mallow is a very straightforward task. These plants will thrive on a general-purpose garden fertilizer that has equal amounts of nitrogen, phosphorus, and potassium. A fertilizer that has a ratio of 10-10-10 or something similar will be very effective. When in doubt, be sure to avoid fertilizers that have high amounts of nitrogen.
Most of the best fertilizer for a Tree mallow will come in a granular form. These fertilizers should be slow-release and will be very easy to apply to the soil. It can also be helpful to feed your Tree mallow using an organic soil amendment such as compost.
Wait until your Tree mallow has just barely poked its first leaves through the soil's surface in early spring. Once you see that sign, apply a granular slow-release fertilizer with a balanced formula to the soil that surrounds the base of your Tree mallow. You can repeat a similar process later in the season if you choose. When reapplying fertilizer to a Tree mallow, you should, again, apply the fertilizer to the soil at the base of the plant rather than to the plant itself. At times, this may require you to move some leaves out of the way to access the soil above the roots. It's also often a good choice to water your Tree mallow before and after you feed it.
The Tree mallow doesn't necessarily need to receive high volumes of fertilizer each year, which means overfertilization is entirely possible. If you overfertilize your Tree mallow, you will likely notice first that the leaves have turned brown.
Overfertilization of Tree mallow is especially common if you use a fertilizer that has higher concentrations of nitrogen. High nitrogen content will likely cause the leaves of your Tree mallow to become discolored, lose much of their moisture, and begin curling at the margins. Many gardeners avoid such complications by limiting fertilization of their Tree mallow to once per year in early spring.
In the late fall and winter, your Tree mallow will enter a dormant phase in which it will no longer produce new growth. At this time, you should avoid fertilizing your Tree mallow. If you choose to fertilize multiple times during spring and summer, you should begin reducing your fertilization rate as summer approaches, as your Tree mallow 's growth rate will also slow.
Overall, it is never a wise choice to fertilize your Tree mallow during times when the weather is unseasonably hot or when the soil is extraordinarily dry. Fertilizing in either of those cases can stress your Tree mallow and cause it to perish prematurely.
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Cultivation:SunlightDetail

What Are the Sunlight Requirements for Tree mallow?

Cultivation:SunlightDetail
The tree mallow generally requires full sun exposure. It may thrive under partial shade, but this will negatively reflect on its blooms. A plant that is shaded will produce fewer flowers, so try to provide at least six hours of full sun a day. If provided with enough sunlight, your tree mallow will not need to be staked.
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What type of sunlight does Tree mallow need?
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Can sunlight damage Tree mallow? How to protect Tree mallow from the sun and heat damage?
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Should I protect Tree mallow from sun exposure?
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What will happen if Tree mallow gets inadequate sunlight?
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Cultivation:PruningDetail

How to Prune Tree mallow?

Cultivation:PruningDetail
The tree mallow, especially the bushier varieties, benefits from occasional pruning. Trimming should be done in late winter or early spring when the frosts have passed. If freshly pruned plant tissue is exposed to freezing temperatures, it can be damaged by frostbite. Trim the shoots down to the first set of leaves, which will stimulate new and healthy dense growth. Use clean, sharp shears and always disinfect your tools in between the cuts to reduce the chances of possible cross-contamination.
Is pruning necessary for my Tree mallow?
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care_advanced_guide

Advanced Care Guide

Cultivation:WaterAndHardinessDetail

What is the Ideal Temperature Range for Tree mallow?

Cultivation:WaterAndHardinessDetail
The tree mallow can grow under a broad range of temperature conditions, with bushier varieties usually able to handle warmer temperatures. This is a hardy plant, able to withstand a winter that drops down to -40 ℃. Some varieties, like the Tree tree mallow, can handle drought well once established, and will burst back into life when the rains return.
What is the optimal temperature for Tree mallow?
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Temperature requirements for first year or seedling Tree mallow
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How can I protect Tree mallow from extreme temperatures?
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Dormant season temperature recommendations for Tree mallow
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Cultivation:SoilDetail

What Soil is Best for Tree mallow?

Cultivation:SoilDetail
The tree mallow is not picky about its growing substrate. It can handle both clay and sandy soils and will adapt to most gardens. It doesn't necessarily require rich organic soils, and fertilizers are not a must. It will grow in neutral soil, but most will thrive if the soil pH is around 7.0.
Cultivation:PlantingDetail

How to Plant Tree mallow?

Cultivation:PlantingDetail
plant your tree mallow in late summer or early fall. If planting in pots or in the garden, mix in some organic compost to regulate water retention. The tree mallow is easily grown from seed. Choose a location that provides well-draining but moist soil and full sun. Sow shallow, cover the seed with a light soil layer, and keep the substrate constantly moist until germination. Pinch back new-growth tips when they reach about 30 cm to stimulate more compact growth.
care_scenes

More Info on Tree Mallow Growth and Care

Basic Care Guide
care_pet_and_diseases

Common Pests & Diseases

Common issues for Tree mallow 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
Aged yellow and dry
Aged yellow and dry Aged yellow and dry Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Solutions: If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
Learn More About the Aged yellow and dry more
Leaf rot
Leaf rot Leaf rot Leaf rot
This pathogen can cause the leaves to rot.
Solutions: Bacterial infections need to be treated quickly to prevent the spread to neighboring, healthy plants, potentially wiping out large sections of your indoor or outdoor garden. In mild cases: Use sterilized (10% bleach solution) pruning shears or scissors to remove any infected plant parts, making sure to dispose of them off site. Use a copper-based bactericide to treat the unaffected foliage, as well as the soil, and neighboring plants. Follow the manufacturer’s rate and timing directions found on the product label. In severe cases, where more than half the leaves are affected: Remove all of the infected plants from the garden, disposing of them off site. Treat the soil and neighboring plants using a copper-based bactericide. Follow the manufacturer’s rate and timing directions found on the product label.
Learn More About the Leaf rot more
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Caterpillars
plant poor
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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Aged yellow and dry
plant poor
Aged yellow and dry
Natural aging can cause leaves to turn yellow and dry out.
Overview
Overview
Regardless of the type of plant or where it is grown, at some point, it will begin to aged yellow and dry. This is a natural, unavoidable process that happens when the plant has completed all of the steps in its life.
Annual plants go through this process at the end of a single growing season. Perennial plants live for multiple years, if not tens or hundreds of years, but will still ultimately exhibit these symptoms.
Symptom Analysis
Symptom Analysis
When plants have progressed through their natural developmental stages and are nearing the end of their lifecycle, they begin showing signs of decline. Leaves will start to yellow and droop, and over time they turn papery brown and dry.
Once completely dry, the leaves begin to fall from the plant until the entire plant has dried out.
Disease Cause
Disease Cause
At the end of its life, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence or natural aging and death. Cell division stops, and the plant begins catabolizing resources to use in other parts of the plant.
As this happens, the tissues begin yellow and drying until the entire plant is desiccated and perishes.
Solutions
Solutions
If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
Prevention
Prevention
Unfortunately, there is no way to prevent plants from dying of “old age.” To help prolong their life, and put off symptoms of aged yellow and dry for as long as possible, take care of them by giving them enough water, fertilizing them appropriately, and making sure they get enough sunlight.
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Leaf rot
plant poor
Leaf rot
This pathogen can cause the leaves to rot.
Overview
Overview
Leaf rot is very common among both house plants and garden plants. It affects foliage and occurs mainly when the leaves become wet due to rain or misting by the gardener. The cause is fungal disease and this is facilitated by the fungal spores adhering to wet leaves then penetrating the leaf and expanding rapidly. Damp conditions and poor air circulation will increase chances of infection taking place. Another factor are leaves that are damaged or have been penetrated by sap sucking insects that facilitate plant penetration.
Symptom Analysis
Symptom Analysis
  1. Spores are able to cling to a damp leaf and penetrate, often through an existing wound.
  2. A small dark brown mark appears which expands rapidly as sporulation starts to take place.
  3. Quite quickly these bull's eye like circles can link together and the whole leaf turns dark and loses texture.
  4. Leaf drop occurs.
Disease Cause
Disease Cause
These symptoms are caused by a bacterial infection invading the plant. Bacteria from many sources in the environment (air, water, soil, diseased plants) enter a plant through wounds, or in some cases the stomata when they are open. Once inside the leaf tissue, the bacteria feed and reproduce quickly, breaking down healthy leaves.
Bacterial infections threaten most plant species, and are more prominent in wet weather that more easily transfers the bacteria from plant to plant, or from soil to plant.
Solutions
Solutions
Bacterial infections need to be treated quickly to prevent the spread to neighboring, healthy plants, potentially wiping out large sections of your indoor or outdoor garden.
In mild cases: Use sterilized (10% bleach solution) pruning shears or scissors to remove any infected plant parts, making sure to dispose of them off site. Use a copper-based bactericide to treat the unaffected foliage, as well as the soil, and neighboring plants. Follow the manufacturer’s rate and timing directions found on the product label.
In severe cases, where more than half the leaves are affected: Remove all of the infected plants from the garden, disposing of them off site. Treat the soil and neighboring plants using a copper-based bactericide. Follow the manufacturer’s rate and timing directions found on the product label.
Prevention
Prevention
  1. Clean up garden debris at the end of the season, especially if it contains any diseased plant tissue. Diseases can overwinter from season to season and infect new plants.
  2. Avoid overhead watering to prevent transferring pathogens from one plant to another, and to keep foliage dry.
  3. Mulch around the base of plants to prevent soil-borne bacteria from splashing up onto uninfected plants.
  4. Sterilize cutting tools using a 10% bleach solution when gardening and moving from one plant to another.
  5. Do not work in your garden when it is wet.
  6. Rotate crops to prevent the buildup of bacteria in one site due to continuous cropping.
  7. Use a copper or streptomycin-containing bactericide in early spring to prevent infection. Read label directions carefully as they are not suitable for all plants.
  8. Ensure plants are well spaced and thin leaves on densely leaved plants so that air circulation is maximised.
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care_more_info

More About Tree Mallow

Plant Type
Plant Type
Herb
Lifespan
Lifespan
Perennial, Annual, Biennial
Spread
Spread
2 m
Bloom Time
Bloom Time
Spring, Summer, Late winter
Flower Color
Flower Color
Pink
Purple
Plant Height
Plant Height
50 to 300 cm

Usages

Garden Use
Although tree mallow is a biennial plant, in gardens, it is commonly grown as an annual because it flowers only during its first year. That is why it is used in containers and as an annual bedding plant, rather than within any lasting garden arrangements. The flowers that are its primary value are hibiscus-like, trumpet-shaped, purple to pink in color. Additionally, tree mallow makes a fine cut flower.
plantfinder

Find your perfect green friends.

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

Common Problems

My common tree mallow is turning brown. Why is this happening?

more more
This is probably the result of heat stress. Even though the tree mallow is relatively drought-tolerant, prolonged hot periods may damage it. Prune back the dying stems to the first flower row and water generously.

My tree mallow has yellowing leaves and only a few blooms, what can I do?

more more
It sounds like your tree mallow is lacking in sunlight. Remember that the tree mallow needs full sun exposure and at least six hours of it. If possible, move the plant to a more suitable position and mix in some organic compost with the soil, to give it a little boost and help it to regain its vigor.
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17,000 local species +400,000 global species studied
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Nearly 5 years of research
product icon
80+ scholars in botany and gardening
ad
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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
Tree mallow has a preference for heavily sunlit environments for flourishing growth. The plant's original habitat consists of surroundings that receive ample sunlight throughout the day. Extremely limited sunlight might hinder its proper development, while overexposure hasn't been reported as detrimental.
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
Symptoms of Insufficient Light in %s
Tree mallow thrives in full sunlight and is commonly grown outdoors where it receives ample sunlight. When placed in rooms with inadequate lighting, symptoms of light deficiency may not be readily apparent.
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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 Tree mallow 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
Tree mallow 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
Tree mallow 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.
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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
Tree mallow is native to regions with moderate climates. Its ideal temperature for growth lies between 68 to 95 °F (20 to 35 ℃). In extremely hot or cold seasons, provide shade or shelter to modulate temperature exposure.
Regional wintering strategies
Tree mallow has strong cold resistance, so special frost protection measures are usually not necessary during winter. However, if the winter temperatures are expected to drop below {Limit_growth_temperature}, it is still important to provide cold protection. This can be achieved by covering the plant with materials such as soil or straw. Before the first freeze in autumn, it is recommended to water the plant abundantly, ensuring the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.
Important Symptoms
Symptoms of Low Temperature in %s
Tree mallow is cold-tolerant and thrives best when the temperature is above {Suitable_growth_temperature_min}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, although there may not be any noticeable changes during winter, there may be a decrease in sprouting or even no sprouting during springtime.
Solutions
In spring, remove any parts that have failed to sprout.
Symptoms of High Temperature in %s
During summer, Tree mallow 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.
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