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Home > Plant Care Guide > Japanese Maple

How to Care for Japanese Maple

A woody plant native to East Asia, the japanese maple features hand-shaped leaves with five-pointed lobes that resemble the palm of a hand. It has been cultivated for millennia in Japan for bonsai creation. Extracts from the branches and leaves of this plant are used as medicine in Chinese traditional medicine.

Symbolism

Peace, abundant blessings, gain through perseverance, harmony, beauty

Water

Every 1-2 weeks

Sunlight

Partial sun

Basic Care Guide

Water

The japanese maple prefers the soil to be kept moist, especially during the summer, because dry weather can cause its leaves to scorch and even fall off in severe cases. During the summer, in addition to watering the roots, foliage can be sprayed during the evening to increase the humidity.

In the summer, seedlings growing in pots may need watering twice a day, in the morning and the evening.
In the spring and fall, watering should be carried out depending on the actual conditions. Watering can be reduced slightly as the temperature drops in the fall, which will help the leaves to change color.
In the winter, it is only necessary to ensure that the soil does not dry out.

Attention should be paid to the watering of seedlings grown in gardens during the early stages. At later stages, water should be supplied according to the weather, that is if there is no rain for more than two weeks in the summer.

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What's the best method to water my Japanese maple?

You might want to put a garden hose at the plant base to ensure that you're promoting excellent root development. Avoid directly spraying the leaves, and know that the leaves will require more watering if they are outdoors and facing direct sunlight. You can also use bubblers that you can put on to each plant to moisten the roots. Also, use soaker hoses that can cover the entire garden or bed when adding or removing plants to push the roots deeply. Drain any excess water and wait for the soil to dry before watering. Water at ground level to prevent diseases. On a sunny day, you might want to spray the entire bush with water. Whether potted or in-ground, please remember Japanese maple prefers deep watering over light sprinkling.

What should I do if I water Japanese maple too much/too little?

An overwatered Japanese maple can start to have leaves that turn yellow, drop off and wilt. The plant can also look dull and unhealthy, with signs of mushy stems. When they are beginning to show these signs, it's best to adjust your schedule whenever possible.

The wilting can also be a sign of under watering as well. You might see that the leaves begin to turn crispy and dry while the overwatered ones will have soft wilted leaves. Check the soil when it is dry and watering is not enough, give it a full watering in time. Enough water will make the Japanese maple recover again, but the plant will still appear dry and yellow leaves after a few days due to the damaged root system. Once it return to normal, the leave yellowing will stop .

Always check the moisture levels at the pot when you have the Japanese maple indoors. Avoid overwatering indoors and see if there are signs of black spots. If these are present, let the soil dry in the pot by giving it a few days of rest from watering.

Overwatering can lead to root rot being present in your plant. If this is the case, you might want to transfer them into a different pot, especially if you see discolored and slimy roots. Always prevent root rot as much as possible, and don't let the soil become too soggy.

You should dig a little deeper when you plant your Japanese maple outdoors. When you check with your fingers and notice that the soil is too dry, it could mean underwatering. Adequate watering is required to help the plant recover.

How often should I water my Japanese maple?

The Japanese maple likes deep and infrequent watering. You would want to soak them in a gallon of water each time, especially when they are planted in pots. The water storage of flower pots is limited and the soil will dry out faster. Watering is required every 3 to 5 days when living in a cold region. Water it early in the morning when the soil is dry, outdoors or indoors. You can also determine if watering is needed by checking the soil inside. When the top 2-3 inches of soil is dry, it is time to give the plant a full watering. During hot days, you may need to check the moisture daily, as the heat can quickly dry out the soil in the pot.

Irrigation of the soil is also required if you have a garden. When you live in a hot climate, you might want to water once a week. Only water when you notice that about 2 to 3 inches of soil become too dry outdoors or indoors. Consider the amount of rainwater on the plant and ensure not to add to it to prevent root rot.You may not need additional watering of the plants if there is a lot of rainfall.Japanese maple generally grows during spring and fall. When they are outdoors, you need to add mulch about 3 to 4 inches deep to conserve more water.

You need to water the plants more frequently in sandy soil because this type tends to drain faster. However, with the clay one, you need to water this less frequently where you could go for 2-3 days to dry the plant and not develop any root rot. You could mark the date on the calendar whenever you water and when you notice that the leaves are starting to droop. This can mean that you might be a day late.

How much water do I need to give my Japanese maple?

The Japanese maple generally needs about a gallon of water each schedule,With the potted plants, you might want to water them deeply until you see that the water is dripping at the bottom of the pot. Then, wait for the soil to dry before watering them again. You can use a water calculator or a moisture meter to determine the amount you've given to your plant in a week. Provide plenty of water, especially in the flowering period, but let the moisture evaporate afterwards to prevent root rot.

If Japanese maple is planted outdoor with adequate rainfall, it may not need additional watering. When Japanese maple is young or newly planted, make sure it gets 1-2 inches of rain per week. As Japanese maple continues to grow, it can survive entirely on rainfall. Only when the weather is too hot, or when there is no rainfall at all for 2-3 weeks, then consider giving Japanese maple a full watering during the cooler moment of the day to prevent the plant from suffering from high heat damage. Additional watering will be required during persistent dry spells.

Should I adjust the watering frequency for my Japanese maple according to different seasons or climates?

The Japanese maple needs outdoors come from rain, with only persistent dry weather requiring watering. Throughout the spring and fall growing seasons, the soil needs to be kept moist but not soggy, and alternating dry and moist soil conditions will allow the Japanese maple to grow well. Throughout the summer, hot weather can cause water to evaporate too quickly, and if there is a lack of rainfall, you will need to water more frequently and extra to keep it moist.

Usually, the Japanese maple will need less water during the winter. Since the Japanese maple will drop their leaves and go dormant, you can put them into a well-draining but moisture-retentive soil mixture like the terracotta to help the water evaporate quicker. Once your Japanese maple growing outdoors begins to leaf out and go dormant, you can skip watering altogether and in most cases Japanese maple can rely on the fall and winter rains to survive the entire dormant period.

After the spring, you can cultivate your Japanese maple and encourage it to grow and bloom when the temperature becomes warmer.This plant is not generally a fan of ponding or drought when flowering. You must ensure that the drainage is good at all times, especially during the winter.

When the plant is in a pot, the plant has limited root growth. Keep them well-watered, especially if they are planted in pots during summer. They don't like cold and wet roots, so provide adequate drainage, especially if they are still growing.

It's always best to water your Japanese maple’s diligently. Get the entire root system into a deep soak at least once or twice a week, depending on the weather. It's best to avoid shallow sprinkles that reach the leaves since they generally encourage the growth of fungi and don't reach deep into the roots. Don't allow the Japanese maple’s to dry out completely in the fall or winter, even if they are already dormancy.

Don't drown the plants because they generally don't like sitting in water for too long. They can die during winter if the soil does not drain well. Also, apply mulch whenever possible to reduce stress, conserve water, and encourage healthy blooms.

What should I be careful with when I water my Japanese maple in different seasons, climates, or during different growing periods?

If planting in the ground, Japanese maple mostly relies on rain. However, if there is no rainfall for 2-3 weeks, you may need to give proper consideration to giving the plants a deep watering. If watering Japanese maple in summer, you should try to do it in the morning. A large temperature difference between the water temperature and the root system can stress the roots. You need to avoid watering the bushes when it's too hot outside. Start mulching them during the spring when the ground is not too cold.

The age of the plants matter. Lack of water is one of the most common reasons the newly planted ones fail to grow. After they are established, you need to ease off the watering schedule.

Reduce watering them during the fall and winter, especially if they have a water-retaining material in the soil. The dry winds in winter can dry them out, and the newly planted ones can be at risk of drought during windy winter, summer, and fall. Windy seasons mean that there's more watering required. The ones planted in the pot tend to dry out faster, so they need more watering. Once you see that they bloom less, the leaves begin to dry up.

Potted plants are relatively complex to water and fluctuate in frequency. Always be careful that the pot-planted plant don't sit in the water. Avoid putting them in containers with saucers, bowls, and trays. Too much watering in the fall can make the foliage look mottled or yellowish. It's always a good idea to prevent overwatering them regardless of the current climate or season that you might have. During the months when Japanese maple begins to flower, you might want to increase the watering frequency but give it a rest once they are fully grown.

Give them an adequate amount of water once every 3 to 5 days but don't give them regular schedules. Make sure the soil is dry by sticking your finger in the pot, or use a moisture meter if you're unsure if it's the right time. Too much root rot can cause them to die, so be careful not to overwater or underwater regardless of the climate or season you have in your area.

Why is watering my Japanese maple important?

Watering the Japanese maple helps transport the needed nutrients from the soil to the rest of the plant. The moisture will keep this species healthy if you know how much water to give. The watering requirements will depend on the weather in your area and the plant's soil.

The Japanese maple thrives on moist soil, but they can't generally tolerate waterlogging. Ensure to provide enough mulch when planted on the ground and never fall into the trap of watering too little. They enjoy a full can of watering where the water should be moist at the base when they are planted in a pot to get the best blooms.

If they are grown as foliage, you need to water them up to a depth of 10 to 20 inches so they will continue to grow. If it's raining, refrain from watering and let them get the nutrients they need from the rainwater.

Fertilizer

Potted seedlings should be given slow-release fertilizer only. For seedlings grown in gardens, fertilizer should be applied three times a year: once in the early spring, once in early summer for the growth period, and once in the fall.

It can be somewhat easy for a novice gardener to overlook Japanese maple since these plants don't often produce showy flowers. However, the incredible leaf shapes and textures of Japanese maple plants can make them as ornamentally appealing as any other plant in your garden. Growing Japanese maple outdoors in your garden is not extremely difficult to do, but there are some insights that you must keep in mind while you care for this plant. Within your maintenance routine, correct fertilization will be crucial.

Regardless of which kind of Japanese maple you own, regular fertilization will help you grow a plant that has great overall health. The proper supply of nutrients leads to more vigorous growth and can help your Japanese maple be more resilient to tough growing conditions while also gaining a better ability to fight off diseases and pests. The foliage of your Japanese maple is one of its most attractive features, which is why you should do all you can to keep it intact. Again, this means creating and adhering to a regular fertilization schedule that is specific to your Japanese maple. Doing so will prompt your Japanese maple to develop leaves with a deep color and a lush overall look.

The first time that you should fertilize your Japanese maple is during the late winter or early spring. This type of fertilization gives your Japanese maple all the nutrients it needs to resume healthy growth once the weather gets warm enough. It is also beneficial to many Japanese maple to provide an additional fertilizer feeding during early fall if you in a warm climate region. Fertilizing in early fall not only adds additional nutrients to the soil, which your Japanese maple will use in the following growing season, but it also helps your Japanese maple be a bit more hardy and capable of surviving the winter cold without experiencing foliage damage. Earlier fertilisation will ensure that the new branches have enough time to grow to withstand the cold winter.

In most cases, the most important nutrient for a Japanese maple is nitrogen, but that does not mean that phosphorus and potassium are unimportant. On the contrary, your Japanese maple likely needs a decent amount of all three main nutrients, which is why a balanced fertilizer, such as a 10-10-10, can work well. However, a more nuanced ratio of nutrients often leads to optimal growth for a Japanese maple. Often, fertilizers that are a bit higher in nitrogen work a bit better. For example, a ratio of 10-6-4 can often work well. When fertilizing, you can use a granular fertilizer or a liquid-based one. At times, a Japanese maple may also need

To fertilize your Japanese maple using a granular fertilizer, all you need to do is sprinkle the fertilizer on the soil at the correct time. The slow-release nature of granular fertilizer will release nutrients into the soil slowly over time. As is usually the case, it's best to water your Japanese maple, at least lightly, before applying fertilizer. As an alternative, you can use a liquid fertilizer, but this is less common. To use this approach, mix your fertilizer with water, then pour the water onto the soil around the base of your Japanese maple. At times, it is beneficial to perform a soil test before fertilizing to see if you will need to alter the pH at all.

Overfertilization is always a risk when you are feeding a Japanese maple. Overfertilization is especially likely if you feed this plant at the wrong time of year, feed it too often, or feed it without watering the soil first. When overfertilization takes place, your Japanese maple may begin to develop brown leaves. Your Japanese maple can also show stunted growth in some cases. On the other hand, it is also possible that too much fertilizer can prompt your Japanese maple to rapidly produce too much new growth, much of which will be weak and prone to breaking. Weak new wood can also detract from the overall form and structure of your Japanese maple.

There are a few times during the year when you should not fertilize your Japanese maple. The first time occurs during the early and mid-winter months, during which time your Japanese maple will be dormant and in no need of feeding. It is also unwise to fertilize this plant during the late spring and all of the summer. During that time of year, the weather will likely be hotter and can be much dryer as well. Both conditions make it more likely that your Japanese maple will have a very negative response to fertilization. To avoid such issues, stick to a fertilization schedule that involves feeding exclusively during early spring and early fall.

Why do I need to fertilize my Japanese maple?

The foliage of your Japanese maple is one of its most attractive features, which is why you should do all you can to keep it intact. Again, this means creating and adhering to a regular fertilization schedule that is specific to your Japanese maple. Doing so will prompt your Japanese maple to develop leaves with a deep color and a lush overall look.

When is the best time to fertilize my Japanese maple?

It is also beneficial to many Japanese maple to provide an additional fertilizer feeding during early fall if you in a warm climate region. Fertilizing in early fall not only adds additional nutrients to the soil, which your Japanese maple will use in the following growing season, but it also helps your Japanese maple be a bit more hardy and capable of surviving the winter cold without experiencing foliage damage. Earlier fertilisation will ensure that the new branches have enough time to grow to withstand the cold winter.

When should I avoid fertilizing my Japanese maple?

It is also unwise to fertilize this plant during the late spring and all of the summer. During that time of year, the weather will likely be hotter and can be much dryer as well. Both conditions make it more likely that your Japanese maple will have a very negative response to fertilization. To avoid such issues, stick to a fertilization schedule that involves feeding exclusively during early spring and early fall.

What type of fertilizer does my Japanese maple need?

However, a more nuanced ratio of nutrients often leads to optimal growth for a Japanese maple. Often, fertilizers that are a bit higher in nitrogen work a bit better. For example, a ratio of 10-6-4 can often work well. When fertilizing, you can use a granular fertilizer or a liquid-based one.

How do I fertilize my Japanese maple?

As an alternative, you can use a liquid fertilizer, but this is less common. To use this approach, mix your fertilizer with water, then pour the water onto the soil around the base of your Japanese maple. At times, it is beneficial to perform a soil test before fertilizing to see if you will need to alter the pH at all.

What happens if I fertilize my Japanese maple too much?

When overfertilization takes place, your Japanese maple may begin to develop brown leaves. Your Japanese maple can also show stunted growth in some cases. On the other hand, it is also possible that too much fertilizer can prompt your Japanese maple to rapidly produce too much new growth, much of which will be weak and prone to breaking. Weak new wood can also detract from the overall form and structure of your Japanese maple.

Sunlight

The japanese maple has a certain requirement for sunlight and prefers a partially shaded area. In cases of exposure to direct sunlight in the summer, the leaves of most varieties will wither, so shading is required. As the plants get older and their root system grows, this condition will be less of a problem. A few varieties will tolerate exposure to direct sunlight, such as ‘Beni Maiko’ and ‘De Shojo’. Some weeping varieties can also tolerate exposure to direct sunlight, such as ‘Ao Shidare’.

Sunlight conditions will directly affect the ornamental appearance of japanese maple leaves. In the spring, sufficient sunlight will make the maple leaves more vivid, while in cases of insufficient sunlight or partial shading the leaf color may fade. During the fall, sunlight can also affect the leaf color. For potted plants, full exposure to sunlight is recommended during the spring and the fall, with partial shading in the summer.

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How many hours of sunlight does Japanese maple need to grow?

Japanese maple requires about 3-6 hours of direct sunlight each day to thrive. However, it also needs some shade during the hottest parts of the day to prevent sun damage. Morning sunlight is ideal for Japanese maple, but it can also tolerate some afternoon sun if the temperature is not too hot. To provide the perfect balance of sunlight, try planting Japanese maple in an area that gets partial sun, such as under a tree or on the east side of a building.

What will happen if Japanese maple doesn’t get enough sunlight?

If Japanese maple is exposed to too much direct sunlight, its leaves may turn yellow, dry out, or even burn. You may also notice that the plant wilts or becomes stunted. To prevent sun damage, make sure to give Japanese maple some shade during the hottest parts of the day. You can use a shade cloth or plant Japanese maple near taller plants that can provide some natural shade.

What will happen if Japanese maple gets too much sunlight?

If Japanese maple doesn't get enough sunlight, it may grow tall and lanky, with sparse foliage. The leaves may also turn yellow or pale green, indicating that the plant is not producing enough chlorophyll due to lack of sunlight. To remedy this, try moving Japanese maple to a sunnier spot, or prune nearby foliage to allow more light to reach the plant.

Pruning

Pruning is mainly used to enhance internal ventilation, improve shoot formation, promote growth, and for shaping. The common approach to pruning is to remove any old or weak branches, remove any branches that disrupt the shape of the tree, and remove any branches that cross other branches. Pruning is used to control the plant according to the required height and shape. Generally, this follows the "Y-type" pruning method.

It is possible to prune a japanese maple throughout the year, but the coldest winter months should be avoided to prevent damage to the plant. Major pruning to shape a maple can be performed following defoliation in the fall, or prior to leaf growth in the spring. It is recommended to prune in the fall because withered and full buds can be easily distinguished.

According to the shaping plan, you can prune any withered buds and keep the full ones, thus making your tree healthier. For pruning in the summer, diseased, weak, or dead branches can be removed, mainly to enhance the tree's ventilation.

If grown as a potted plant, the roots can easily occupy the entire flowerpot due to the limited space. This can make a japanese maple prone to aging if an old flowerpot is not changed. It is recommended that old roots are pruned during the dormancy period, that is, cut off any old, coarse, diseased, and weak roots.

Is pruning necessary for my Japanese maple?

Despite having a relatively fast habit of growth, Japanese maple does not require very much pruning. It is not necessary to routinely prune this tree, however, it does require some pruning every once in a while. Pruning can be done to tidy this tree up and remove any diseased or damaged foliage. Or Japanese maple can be pruned for shaping.

When is the best time to prune my Japanese maple?

Japanese maple should be pruned as needed. Typically, these trees should be pruned to remove any damaged, yellowing, dying, or dead foliage. It is also necessary to prune this plant to remove any shoots that are congested or are crossing. The best time to prune Japanese maple is between late winter to early spring. This is the period when pruning causes the least damage to the plant.

How can I prune my Japanese maple?

Pruning Japanese maple is a fairly easy task if you know what to look for. To prune these trees, you will need a pair of sharp pruning shears. Using your pruning shears, remove any damaged or diseased parts of the tree. Keep an eye out for any shoots that are becoming congested or are beginning to cross and remove them. Ideally, you should steer clear from pruning any of the tree’s lower limbs. Leaving these intact will allow the tree to have a more natural and open form. Additionally, leaving the lower limbs alone will help to prevent any disease-inducing stress, as well as suckers from forming.

What should I do after pruning my Japanese maple?

There are no special requirements to follow after you have pruned your Japanese maple. It is recommended, however, that you dispose of any diseased foliage that has been removed from the tree away from any other plants. This is to avoid spreading the disease to other plants. After pruning your Japanese maple, you may apply a fertilizer treatment to encourage faster growth. Do not water the plants immediately after pruning as this can lead to fungal infestation of the plants through the wounds.

What should I be careful with when pruning my Japanese maple during different growing stages?

The best time to prune Japanese maple is between late winter to early spring. This is the period when pruning causes the least damage to the plant. Keep an eye out for any shoots that are becoming congested or are beginning to cross and remove them. Ideally, you should steer clear from pruning any of the tree’s lower limbs. Leaving these intact will allow the tree to have a more natural and open form. This will increase ventilation and light, reduce disease infection and allow Japanese maple to grow more vigorously. When pruning branches you need to leave the strong ones and remove the weak ones, keeping healthy auxiliary branches that grow outwards at about 45 degrees. Branches that are too angled or too small should be removed. Pruning Saw is required if the branch is more than three quarters of an inch in size, pruning should be done in the direction of the "Branch bark ridge" to the "Branch collar" to allow for good healing. Branches that require a saw need to be pruned using the "three-cut method", which prevents the bark of the branch from tearing and creating cracks in the trunk, which can be detrimental to the recovery of the plant. Finally, you may prefer to just trim off dead or damaged portions of the plant to keep it looking its best as if it's possible. This can be done at any time of year. Diseased or damaged stems should be cut right at the soil line and removed completely.

Are there any tips for pruning my Japanese maple?

The best thing to remember about Japanese maple is that they do not require routine pruning. Your tree will likely grow better if you prune it as and when it is necessary and no more than that. Additionally, you should also keep in mind that it is better to leave the lower limbs of this tree alone to prevent stress-induced diseases from attacking your tree. Different diameter branches require different pruning tools. If the tree is too tall, pruning needs to be done safely or by a professional.

Advanced Care Guide

Temperature

The japanese maple has good cold resistance and is able to tolerate low temperatures. The japanese maple is native to the margins of forests in China, Japan, and North Korea, so these trees generally prefer a humid environment. Most japanese maple plants have shallow root systems, so they should be watered frequently during the summer. For some varieties, a sprayed mist should be provided during the summer to increase the humidity of the air around them.

What is the optimal temperature for Japanese maple?

The best temperature for Japanese maple to thrive is 65~80℉(18~27℃). During the primary growing phase, the highest temperature tolerable would be 95℉(35℃), while the lowest tolerable temperature would be 15℉(-10℃). This species is tolerant of low temperatures and will survive freezing winters. The perfect, highest, and lowest temperature range:

Perfect：65~80℉(18~27℃)

Highest：85~95℉(30~35℃)

Lowest：-5~15℉(-20~-10℃) or below

Should I adjust the temperature for Japanese maple during different growing phases?

Research shows that Japanese maple will begin to exhibit signs of stunted growth during prolonged periods of higher temperatures, especially during the development of axillary buds and the growth of main shoots. Keeping the temperatures consistent and cooler, around 65℉(18℃), will encourage vigorous growth after germination or transplanting.

How can I keep Japanese maple warm in cold seasons?

Japanese maple can withstand freezing temperatures when planted in the ground in areas that don’t get below of 15℉(-10℃) as an extreme temperature during the winter months. But if planted in pots or containers, then their roots must be protected from the winter cold. Do this by wrapping the container in a blanket or bringing it inside where it will be fully protected from the elements.

What damage will Japanese maple suffer if the temperature is too high/low?

Greater harm will come to Japanese maple if the temperature is consistently too high versus too low.

If Japanese maple gets too hot, seed germination and photosynthesis efficiency is lessened due to hormone triggers caused by heat stress. The plant will show signs through wilting, leaf browning, and potentially death.

If Japanese maple gets too cold, plant functions such as nutrient uptake and photosynthesis will cease, resulting in the possible death of the plant. If a single freezing event occurs during the growing season, then a membrane phase transition might occur, which can cause a cease in plant functions and death of the plant.

What tips and cautions should I keep in mind when it comes to temperature for Japanese maple?

Keeping the soil temperature consistent is one of the most important strategies to keeping Japanese maple healthy, which leads to successful budding, flowering, and new growth. Do this by consistently watering, adding mulch to bare soil, and planting in the shade.

How can I keep Japanese maple warm without a heat pad?

Due to the cold tolerance of Japanese maple, heating pads will not be necessary if planted outside in the ground. If the plant is in an outdoor pot, then bring it inside a heated house and place it in a sunny window during the winter months.

How can I provide Japanese maple with an adequate temperature condition?

To ensure adequate temperature conditions are present, plant Japanese maple in an area with partial shade. If possible, use afternoon shade to provide the best protection during the hottest part of the day. This will also result in lower temperatures in the soil due to increased moisture retention. If Japanese maple is planted indoors, then keep the container away from windows and out of direct sunlight during the summer months to prevent the soil temperature from spiking daily.

How can I save Japanese maple from temperature damage?

During the summer or times of high heat, give Japanese maple extra shade and water to help cool its leaves, roots, and soil. During cold snaps or growing season freezes, cover sensitive budding vegetation with frost cloth or water using sprinkler systems. If it’s only nearing freezing temperatures for a short period, then water during the day several hours before the freeze. If the temperature is predicted to remain below freezing for an extended period, then keep the sprinkler running until the temperature rises above freezing the following day.

Should I adjust the temperature for Japanese maple in different seasons?

Japanese maple is a mid-temperature plant that can easily tolerate the typical fluctuations of the seasons and remain a hardy species when planted in maintained landscapes areas, containers, or indoors. Therefore, adjusting the temperature during the different seasons is unnecessary for primary growth. If flowering is stunted or impeded, then allowing the plant to experience a season of winter freeze could help to revive flowering.

Under what conditions should I stop adjusting the temperature for Japanese maple?

If it becomes too difficult to lower the temperature for an indoor plant during the summer, then plant it outside in the ground or in a container. Make sure to plant Japanese maple in a shaded location and water often to keep the soil moist.

Soil

The japanese maple does not have many specific requirements for soil. It is a forest native, so it prefers well-drained soil that is rich in humus and slightly acidic. Its main root will extend deep into the soil, but its tiny fibrous roots will be concentrated near the soil surface, so accumulated water in the soil tends to cause root rot.

Propagation

Planting

Common propagation methods include grafting, taking cuttings, and sowing seeds.

Grafting is the most common propagation method. Seedlings of Acer palmatum or Acer oliverianum are usually selected for the rootstock. Grafted seedlings have strong roots and grow rapidly, but poor affinity is occasionally present in some cases. Seedlings with Acer oliverianum as the rootstock are less hardy.

Cuttings take longer to grow and are mostly used in the production of bonsai.

Sowing seeds is a common way to cultivate new varieties. The hybrid offspring of two different maples are sown and valuable individuals are then selected from the seedlings. The traits of the parents may not be maintained in the selected offspring.

Propagating Japanese maple by yourself is difficult, but that doesn't mean it can't be done. If you are interested in this, you can read on. Its propagation can be done by cuttings, which is easy to do. Japanese maple can be propagated during the dormant season from mid-autumn until late winter. Most people prefer to take cuttings right after leaves drop, but it can be done successfully at other times, provided you avoid taking cuttings during severely cold periods. The beginning and ending of the dormant season are the most likely to be successful. Flash cuttings cannot tolerate the cold environment. If the winter temperatures in your area are low (e.g., below 0 ℃ for an extended period of time), it is recommended that you place the cuttings in a garage or outdoor incubator after cutting. This will help the cuttings to develop roots. When propagating Japanese maple, be sure your cutting tool is large enough and sharp enough to cut cleanly through the shoots. Using a dull tool can crush or tear the plant, which can lead to infection and disease.

Sharp garden pruners
Diluted bleach solution or isopropyl alcohol to clean tools
Rooting hormone (optional but recommended)
Deep container(s) with drainage holes for planting
Well-draining planting medium such as pine bark, perlite, or a potting soil mix

Steps: Step 1: Choose healthy shoots that are about as thick as a pencil for your propagation and 6 to 8 inches long, preferably from the previous year’s growth. Once you have identified your cuttings, use disinfected garden pruners to cut off the bud tip and take the remaining branch of the front section about 7-8 inches. If you are not putting them into containers immediately, keep the cuttings moist until you are able to pot them. TIP: Pay attention to which side is up when you are taking cuttings - it can be difficult to tell when there are no leaves Step 2: Prepare your containers by filling them with the planting medium. Adding compost to the soil can facilitate plant rooting. Step 3: Dip the bottom of your Japanese maple into rooting hormone, then insert one-third to two-thirds of the cutting into the substrate. Plant them about 2 inches apart. You should be able to plant as many as 10 to 12, depending on your container size. Step 4: Water thoroughly, making sure the potting medium is evenly moist but allowing it to drain. Step 5: Place the containers in a cold, protected location that receives some sunlight. An unheated garage, a porch, or a cold frame work well for this. Leave the Japanese maple there throughout the winter. Water occasionally to make sure the soil doesn’t dry out completely, although it can be dryer during the coldest winter months. Start watering more often as days get warmer in the spring. It is recommended that you place the cuttings in a garage or outdoor incubator after cutting if the winter temperatures in your area are low. Step 6: Move the containers outside to a spot that gets partial sun after the last frost. You can expect to see new leaves on your Japanese maple around the middle of spring. It’s important to be patient with this process because it is quite slow. In fact, it can take a year or longer for Japanese maple to be ready to be transplanted. Luckily there isn’t much maintenance during this time, and the process has a high likelihood of success. Even if your Japanese maple is putting out new growth, they may not be ready to be planted into the ground just yet. It is more important that there are plenty of healthy roots growing. The roots should be at least 3 inches long, but many people like to wait until roots start to grow out of the drainage holes to be sure that there is a proper root system. Air layering also works to propagate trees successfully, but the procedure is relatively complicated. Pay attention to the age of the branch you want to propagate to know when to start air layering. If you're working with a branch that is old-growth, preferably from the previous year’s growth, spring is the best time for layering. If your chosen branch is new growth, mid-summer is your best bet. These warm months are the best time to encourage new root growth in your plants. A pencil-thick branch could be a good choice. Since air layering is a little more complicated than other types of layering, you’ll need a few extra tools before you begin the process. Make sure you have everything on hand and then begin!

A sharp, sanitized knife
Peat moss for wrapping
Plastic wrap for wrapping
Rubber bands or twist ties
(optional) aluminum foil
(optional) plant growth hormones

Or you can just prepare air layering pods and a sharp, sanitized knife. Steps: Step 1: Choose a thick upper stem and clear off the leaves around a chosen node. Step 2:Below this node, ring peel the plant to a length of 0.5 to 1 inches, completely stripping the bark of the plant. It is necessary to pay attention to safety of the plant when ring stripping. Step 3: Apply moist (not wet) peat moss to the cut area. Hold the moss in place by tightly wrapping the area with plastic wrap and ties. Apply an extra layer of aluminum foil for sun protection if needed. Step 4: Remove the stem for propagation once the peat moss is visibly filled with roots. Make sure the wrapped moss is moist during rooting. Use a syringe to inject water if you find that the peat moss is already dry. If you have collected seeds from the tree, you can try to propagate the tree from its seeds. Only sow Japanese maple seeds in warm weather, preferably during the later weeks of spring after any danger or frost or dropping temperatures has passed. Even in warm weather, make sure the soil is warmed up sufficiently, as cooler soil can hinder germination and growth. You need to do it indoors for a successful germination if you want to sow the seeds earlier. To sow Japanese maple in your growing medium, you don't need many extra tools to get the job done. Put on your gardening gloves and get started!

Healthy and full seeds, the germination rate of such seeds will be higher
Growing medium with potting mix soil divided into rows
Fertilizer or compost
(optional) a dibbler or stake
A spray bottle to hydrates the soil
A piece of plastic film (Optional)

Steps: Step 1: Prepare the soil: Mix the soil with organic fertilizer. Fully rotted fertilizer is recommended, and the volume of the fertilizer should not exceed one quarter of the volume of the soil when mixing. Step 2: Sprinkle the plants in the soil and cover the seed surface with soil afterwards. Or use a dibbler or stake to pre-dig holes for the seeds, placing about 3 seeds in each mound. The depth of the soil on the surface of the seed needs to be about five times the thickness of the seed. Step 3: Leave a 4-6-inch gap between each seed mound. Step 4: Water the soil in the container well after planting to provide enough water for the seeds to germinate. Step 5: Mulch the surface of the container soil to moisturize the soil and promote seed germination. Use a spray can to spray the soil with water when the soil is relatively dry. Keep this until the seeds germinate. Note: Before seeds germinate, they can be kept in a low light location. But after the seeds germinate, you need to add light to the plant in time, otherwise it will excessive growth.

The best time for planting or transplanting a japanese maple is following defoliation in the fall. At this time, the leaves will have fallen off so there is little transpiration and water loss can be avoided. In addition, the root system will still be growing at this time, preparing for regrowth the following spring. Transplanting should be avoided on the coldest days because cold wind can kill some of the shoots and branches. During the winter, in areas that cannot be sheltered from the wind, it is recommended to cover the branches.

Transplanting

Potting Suggestions

The best time to transplant japanese maple is from late spring to mid-summer, as it gives the plant ample time to establish and thrive. Choose a location with partial shade and well-draining soil. Remember to keep the roots moist during the process for optimal transplant success.

Needs excellent drainage in pots

More About How-Tos

Water

Every 1-2 weeks

Japanese maple originates from the forests of Japan, Korea, and China, where it experiences moderate to high rainfall spread throughout the year, up to 60 inches annually. Moisture levels in these locales remain relatively consistent, which japanese maple has evolved to favor. This plant thrives on steady, evenly distributed watering without over-saturation, echoing the precipitation patterns of its natural habitat. Extremely dry periods can stress japanese maple, reinforcing the need for consistent moisture.

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Lighting

Partial sun

Japanese maple's sunlight needs are flexible; it can tolerate both areas bathed in light and areas that receive filtered light throughout the day. This adaptability originates from its home environment, with diverse light conditions. Insufficient lighting may reduce leaf coloration, while excessive can cause leaf scorch.

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Temperature

-30 41 ℃

Japanese maple grows best in a temperate climate with a preferred temperature range of 32 to 95 ℉ (0 to 35 ℃). It is native to Japan where the temperature ranges from 23 to 81 ℉ (-5 to 27 ℃). During the hot summer months, it is recommended to provide shade and ample water to help the plant adjust to the high temperatures. In colder conditions, it is best to protect the roots with mulch and provide wind barriers to prevent cold damage.

Learn More

Transplant

10-25 feet

Learn More

Seasonal Care Tips

Seasonal Precautions

Ensure the plant is frequently watered during the summer, because if it dries out its leaves may wither and the plant may even lose all of its leaves. For some varieties, it is recommended that seedlings are shaded in the summer. In the winter, plants grown in cold regions of the north should have any new branches protected so as to avoid them being damaged by cold winds.

Spring

Summer

Fall

Winter

This plant and other temperate fruiting trees and shrubs require care in the early spring.

Prune back old growth but wait until after the last frost.

Spring is also the best time for planting, but do not fertilize new plants. Mature specimens will benefit from a monthly application of organic fertilizer.

Water the plant deeply every couple of weeks.

Container plants require sunlight in the spring. Move the container to a location receiving several hours of sunlight a day.

Fruiting temperate trees and shrubs like this plant benefit from care during the summer.

A monthly application of organic fertilizer throughout the summer helps to support growth and encourage fruiting.

Keep an eye on soil moisture, watering whenever the soil is beginning to dry out.

Remove any dead and dying leaves from the plant and around the base to help avoid issues with pests and diseases.

Prune back old growth to help avoid potential issues with broken branches.

Move container plants to a partially shady location if they are in a consistently sunny area.

You should provide frequent care to your plant throughout the fall.

Up until your plant reaches dormancy in the cold winter months, continue to water it in cases of little to no rainfall to ensure the soil stays moist and the plant stays productive.

Make sure it received plenty of direct sun as well.

Fertilize it once at the beginning of fall, with a citrus fertilizer, then stop fertilizing and pruning during this season, especially as winter approaches. This will help your plant enter winter dormancy more easily.

Rake up any fallen fall foliage to deter pests and diseases, as bacteria can easily grow in the fallen leaves at the base of the plant.

While your plant is dormant in the winter, let it rest. You’ll need to provide only minimal care at this time.

Water your plant infrequently, providing it with water it only after the soil dries out to avoid waking it up.

At the very end of winter, before new growth begins, prune away dead, diseased, or overcrowded branches to jumpstart fresh growth in the spring.

If you have a potted variety, you can overwinter it indoors in bright sunlight, and you can possibly enjoy the harvest from your plant throughout the season.

Common Pests & Diseases

Common issues for Japanese maple based on 10 million real cases

Brown spot

This infection can cause brown spots or patches to appear on the plant.

Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.

Plant dried up

The entire plant may dry out due to dieback or normal seasonal dormancy.

Solutions: The solution for a dried out plant depends on the cause, so determine the cause before selecting a treatment method. Adjust your watering: Stick your finger in the soil near the roots. If it feels bone dry or overly saturated, you need to adjust your watering frequency accordingly. Prune back dead foliage: Snip off any brown stems and leaves on the plant to make space for new growth. This encourages the roots to send up fresh stems. Move to a proper environment. This may involve decreasing or increasing sun exposure, depending on the species. Decrease fertilizer applications. If you have applied too much fertilizer, you can repot plants with fresh potting soil. Wait. If your plant has dried out as daylight is decreasing, it is entering dormancy. Decrease watering and wait until the plant resumes growth.

Scars

Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.

Solutions: Each source of scarring requires a different approach to help your plant recover. Protect the trunk and leaves from physical damage like scrapes. If pests or disease are the cause of scarring, isolate the plant from others to avoid further spread. Some pests can be removed with organic remedies such as a soft cloth and soapy water solution or diluted isopropyl alcohol spray. Stop sunburn by moving your plant away from direct sunlight and making sure it has the water it needs. Frequent leaf or bud loss may be due to insufficient light or nutrients.

Fruit withering

Fungal infection or normal ripening can cause the fruit to dry out.

Solutions: There are a number of appropriate solutions to control fruit withering: Remove any fruit as soon as it shows any signs of infection. Do not compost. Use a fungicide prior to leaf bud and then as per manufacturers instructions throughout the season.

Black spot

Infection by the black spot pathogen causes black spots or patches to appear on leaves.

Solutions: Some steps to take to address black spot include: Prune away any infected leaves, cleaning the pruners between plants with a 10% bleach solution so that the fungus does not spread to healthy leaves. Don't compost pruned plant parts as the spores can linger in the soil for a long period of time - instead, dispose of them in the trash. Use an approved fungicide such as Trifloxystrobin, Chlorothalonil, Maneb, or Myclobutanil. Use a spreader in the fungicide spray to ensure better coverage.

Underwatering

A lack of water will cause the leaves to gradually turn yellow starting at the base of the branch while the entire plant appears to wilt.

Solutions: Your plant is very thirsty and needs water promptly. You can revive your plant by giving it water. The easiest technique is to slowly pour water into your plant’s soil so that the whole surface is moistened. If you pour the water too quickly, the water will flow directly through rather than diffusing throughout the soil. If your plant’s pot does not have drainage holes, do not give your plant more than about a third of the pot’s volume of water. If your plant’s pot does have drainage holes, you can add water slowly until the soil is thoroughly moistened and the water flows freely through the pot. If you trim off yellow leaves to improve the plant’s appearance, do not remove more than a third of the plant’s leaves. It may be better to wait until leaves have died and fallen off to remove them.

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More About Japanese Maple

Plant Type

Tree, Shrub

Lifespan

Perennial

Spread

6 m

Bloom Time

Spring

Flower Color

Red

Purple

Leaf Color

Green

Red

Orange

Yellow

Flower Size

6 to 8 mm

Plant Height

4 to 15 m

Name story

Japanese maple

This kind of maple tree originated from northeast Asia. The Japanese horticultural communities have selectively bred it for centuries and cultivated more than 1000 gardening species. Therefore, they are often called the Japanese maple.

Palmate maple

Compared with other maple trees, this particular maple tree has deeper lobes which is similar to the typical "palmate" shape. Hence, it is also called a palmate maple.

Usages

Environmental Protection Value

It has strong resistance to sulfur dioxide and smoke and dust, and can purify air.

Garden Use

Japanese maple is a deciduous tree commonly found in gardens. It is prized for its unusual bark and brilliant yellow foliage in fall. Its branching makes it suitable as a shade tree. Japanese maple is appropriate for Japanese-style gardens. Suggested companion plants include Japanese or Cushion Spurge for color contrasts. Alternatively, grow alongside Holly or Azaleas.

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Common Problems

Why does my japanese maple not change color?

The change in leaf color is the result of a combination of factors. Generally speaking, leaf color is affected by temperature, sunlight, humidity, and vigor. A good color effect can only be obtained with appropriate changes in temperature, a certain amount of sunlight, and a certain degree of humidity. If there is a sharp drop in temperature, the leaves will simply fall off. The color will fade if there is insufficient sunlight. If there is inadequate humidity, the color will not be bright enough to provide a good display.

Why do the branches look short and stunted?

This is generally due to poor root growth. The plant takes in insufficient nutrients to grow healthy new branches, so any new branches are short, meaning that an elegant shape cannot be obtained. The roots of newly transplanted japanese maple trees generally do not recover, but this situation can be improved by the second year if the japanese maple is well cared for.

Why should the leaves be removed in the fall?

In some regions, the leaves can suffer from leaf burn and margin scorch if exposed to too much strong sunlight during the summer. If no protective measures are taken at this time, the leaf color in the fall will be very poor and the leaves may even fall off in advance, spoiling the ornamental effect. If a maple has severely scorched leaves, some of these leaves may be removed during August and September. It is not recommended to remove leaves from less vigorous japanese maple varieties, such as Acer shirasawanum aureum.

Caring for a New Plant

The following pictures and instructions for woody plant are aimed to help your plants adapt and thrive in a new environment.

Picking a Healthy Woody Plant

Check Its Health

Whole Plant

Symmetrical crown, evenly distributed branches, full and compact shape, no excessive growth, close internodes, and uniform leaf size.

Branches

The branches are not withered, and the trunk is free of boreholes or damage.

Leaves

Check the inside of the plant, shaded and overlapping areas, back of leaves. Even colour, no yellowing, no brown spots, no crawling insects, no cobwebs, no deformities, no wilting.

Stems

No mold, browning or soft rot at the base of the plant.

Health Troubleshooting

Whole Plant

1 Asymmetrical crown or missing, uneven branching: prune the weak and slender branches of the larger portion of the asymmetrical crown.

2 Internodes are longer in the upper part, leaves are sparse and smaller on top: increase light intensity or duration.

Branches

1 Dry branches: check if the branch is still alive by peeling back a small section of bark and trim away any dry branches. Watch out for signs of insect infestation inside the branch.

2 Bark with holes: inject insecticide into the holes and apply systemic insecticide to the roots.

3 Damaged bark: brush on a wound-healing agent, and avoid getting it wet.

Stems

Mildew, browning, or soft rot at the base: place the plant in a ventilated, dry environment and water with fungicide.

Leaves

1 Uneven leaf color and yellowing: prune yellow leaves and check if there are signs of rot at the base of the plant. Spray with fungicide for severe cases.

2 Brown spots or small yellow spots: place the plant in a ventilated area and avoid watering the leaves. Spray with fungicide for severe cases.

3 Tiny crawling insects on the back of leaves or spider webs between leaves: increase light exposure and spray with insecticide for severe cases.

4 Deformations or missing parts on leaves: determine if it's physical damage or pest infestation. Linear or tearing damage is physical, while the rest are pests. Spray with insecticide.

5 Wilting leaves: provide partial shade and avoid excessive sun exposure. Remove 1/3 to 1/2 of the leaves for severe cases.

Treat and prevent plant diseases.

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

Check Its Growing Conditions

Soil Check

Soil should smell fresh like after a rain and no musty odor.

Light Check

Check the light requirement of the plant and if it match with planting location.

Temperature Check

Check if the current outdoor temperature is too low or too high.

Condition Troubleshooting

Soil

Potting mix soil, Peat moss mix soil

Soil smells musty or foul: check the root system for decay, place the plant in a ventilated, dry environment, and water with fungicide.

Ideal Temperature

-10℃ to 35℃

Outdoor temperature is not suitable for the plant: wait until it's a more favorable temperature for growth.

Suitable Light

Partial sun, Full shade

Insufficient light: Lack of light can result in fewer leaves and branches, and prevent flowering. Move plant to sunnier spot if possible.

Transplant recovery: After 3 days without severe wilting, slowly increase light to normal levels over a week. If plant droops or sheds leaves, keep it in shade. Once wilting stops, give shade until the plant stands up again. Lots of yellowing and leaf loss mean the light is too low and needs to be increased.

Adapting Your New Woody Plant

Step 1

Repotting

Plant your plant promptly in its final location or in a new pot, if conditions are suitable. When transplanting, clean the roots of the plant and keep the root system intact. Prune any blackened or rotten roots, spread out a heavily tangled root system, and mix in some well-rotted organic fertilizer. Use permeable soil and water thoroughly after planting.

Step 2

Pruning

Remove yellow or diseased leaves immediately. If leaves are crowded and appear wilted or falling off, remove some of them. For bare-root plants, cut off at least half of the leaves. Pruning is not typically required.

Step 3

Watering

Increase watering in the first week to keep soil moist. Water when soil is slightly dry, for at least 2 weeks. Avoid over-watering. Do not water when there is water on your fingers after touching the soil.

Step 4

Fertilizing

Add a small amount of base fertilizer during transplanting or repotting. No other fertilizer needed for the first month.

Know the light your plants really get.

Find the best spots for them to optimize their health, simply using your phone.

Japanese Maple

Repotting

Plant promptly in final location or new pot. Clean roots, use organic fertilizer, permeable soil, and water thoroughly.

Pruning

Cut off yellow or diseased leaves and crowded leaves that appear wilted or falling.

Watering

Water new plants more often for 2 weeks. Avoid over/under watering by checking the soil.

Fertilizing

Add base fertilizer during transplanting. No other fertilizer is needed for the first month.

Sunlight

Regular sun exposure for indoor plants. Shade after transplanting/repotting, then gradually increase light if there is no wilting. Increase light if yellowing and leaf drop occur.

Save and print our adaptation tips card for quick and easy reference.

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Japanese Maple

Repotting

Plant promptly in final location or new pot. Clean roots, use organic fertilizer, permeable soil, and water thoroughly.

Pruning

Cut off yellow or diseased leaves and crowded leaves that appear wilted or falling.

Watering

Water new plants more often for 2 weeks. Avoid over/under watering by checking the soil.

Fertilizing

Add base fertilizer during transplanting. No other fertilizer is needed for the first month.

Sunlight

Regular sun exposure for indoor plants. Shade after transplanting/repotting, then gradually increase light if there is no wilting. Increase light if yellowing and leaf drop occur.

Plants with Same Care Needs

Black cherry

Black cherry (Prunus serotina) is a medium-sized, deciduous forest tree native to the Americas, but also naturalized in parts of Europe. It features inflorescence with small white blooms that become clusters of dark cherries, edible when pitted. Mature trees have gray-to-black, distinctly crackled bark. The glossy leaves are poisonous to livestock. It is a highly reproductive pioneer species with invasive potential.

Bloom Time

Spring

Common dandelion

*Taraxacum officinale*, widely known as common dandelion, is a herbaceous perennial that can be found in temperate regions all over the world, in habitats with moist soils. The most popular feature of this plant is its fruits, furry spheres that are easily carried by the wind. Although it is generally considered a weed, common dandelion is actually edible and very nutritious.

Bloom Time

Spring

Common hackberry

Common hackberry (Celtis occidentalis) is a medium-sized deciduous tree, native to North America. It looks similar to elms and some other hackberry trees at first glance, but you can distinguish it by looking at the bark - if it is verrucous and has corky texture, then it is probably common hackberry.

Bloom Time

Spring

Common buckthorn

Rhamnus cathartica, colloquially known as common buckthorn, is a deciduous shrub or small tree native to Europe. This plant is hazardous to humans and most animals; all parts of it are mildly poisonous. The fast-growing common buckthorn is considered an invasive species in certain parts of North America.

Bloom Time

Spring

Arborvitae

Northern white cedar (Thuja occidentalis) is a small- to medium-sized evergreen conifer native to North America, and can be found in a variety of environments, including forested wetlands and along cliffs. Essential oils are produced using northern white cedar, and it also finds use as an ornamental plant. Due to its increasing popularity in landscaping, more compact plants have been used to develop smaller strains.

Bloom Time

Spring

Sugarberry

Celtis laevigata, commonly known as sugarberry, is a deciduous medium-sized tree native to North America. It is often found near water - on floodplains, along rivers and streams. There are many species of birds, small mammals, and insects that use sugarberry's fruits and leaves as a source of food, which makes it a very important part of the ecosystem.

Bloom Time

Spring

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How to Care for Japanese Maple

Symbolism

Peace, abundant blessings, gain through perseverance, harmony, beauty

Every 1-2 weeks

Water

Partial sun

Sunlight

Basic Care Guide

Water

In the summer, seedlings growing in pots may need watering twice a day, in the morning and the evening.
In the spring and fall, watering should be carried out depending on the actual conditions. Watering can be reduced slightly as the temperature drops in the fall, which will help the leaves to change color.
In the winter, it is only necessary to ensure that the soil does not dry out.

Never miss a care task again!

Plant care made easier than ever with our tailor-made smart care reminder.

What's the best method to water my Japanese maple?

What should I do if I water Japanese maple too much/too little?

How often should I water my Japanese maple?

How much water do I need to give my Japanese maple?

Should I adjust the watering frequency for my Japanese maple according to different seasons or climates?

What should I be careful with when I water my Japanese maple in different seasons, climates, or during different growing periods?

The age of the plants matter. Lack of water is one of the most common reasons the newly planted ones fail to grow. After they are established, you need to ease off the watering schedule.

Why is watering my Japanese maple important?

Fertilizer

Why do I need to fertilize my Japanese maple?

When is the best time to fertilize my Japanese maple?

When should I avoid fertilizing my Japanese maple?

What type of fertilizer does my Japanese maple need?

How do I fertilize my Japanese maple?

What happens if I fertilize my Japanese maple too much?

Sunlight

Know the light your plants really get.

Find the best spots for them to optimize their health, simply using your phone.

How many hours of sunlight does Japanese maple need to grow?

What will happen if Japanese maple doesn’t get enough sunlight?

What will happen if Japanese maple gets too much sunlight?

Pruning

Is pruning necessary for my Japanese maple?

When is the best time to prune my Japanese maple?

How can I prune my Japanese maple?

What should I do after pruning my Japanese maple?

What should I be careful with when pruning my Japanese maple during different growing stages?

Are there any tips for pruning my Japanese maple?

Advanced Care Guide

Temperature

What is the optimal temperature for Japanese maple?

Should I adjust the temperature for Japanese maple during different growing phases?

How can I keep Japanese maple warm in cold seasons?

What damage will Japanese maple suffer if the temperature is too high/low?

What tips and cautions should I keep in mind when it comes to temperature for Japanese maple?

How can I keep Japanese maple warm without a heat pad?

How can I provide Japanese maple with an adequate temperature condition?

How can I save Japanese maple from temperature damage?

Should I adjust the temperature for Japanese maple in different seasons?

Under what conditions should I stop adjusting the temperature for Japanese maple?

Soil

Propagation

Planting

Common propagation methods include grafting, taking cuttings, and sowing seeds.

Cuttings take longer to grow and are mostly used in the production of bonsai.

Sharp garden pruners
Diluted bleach solution or isopropyl alcohol to clean tools
Rooting hormone (optional but recommended)
Deep container(s) with drainage holes for planting
Well-draining planting medium such as pine bark, perlite, or a potting soil mix

A sharp, sanitized knife
Peat moss for wrapping
Plastic wrap for wrapping
Rubber bands or twist ties
(optional) aluminum foil
(optional) plant growth hormones

Healthy and full seeds, the germination rate of such seeds will be higher
Growing medium with potting mix soil divided into rows
Fertilizer or compost
(optional) a dibbler or stake
A spray bottle to hydrates the soil
A piece of plastic film (Optional)

Transplanting

Potting Suggestions

Needs excellent drainage in pots

More About How-Tos

Seasonal Care Tips

Seasonal Precautions

Spring

Summer

Fall

Winter

This plant and other temperate fruiting trees and shrubs require care in the early spring.

Prune back old growth but wait until after the last frost.

Spring is also the best time for planting, but do not fertilize new plants. Mature specimens will benefit from a monthly application of organic fertilizer.

Water the plant deeply every couple of weeks.

Container plants require sunlight in the spring. Move the container to a location receiving several hours of sunlight a day.

Fruiting temperate trees and shrubs like this plant benefit from care during the summer.

A monthly application of organic fertilizer throughout the summer helps to support growth and encourage fruiting.

Keep an eye on soil moisture, watering whenever the soil is beginning to dry out.

Remove any dead and dying leaves from the plant and around the base to help avoid issues with pests and diseases.

Prune back old growth to help avoid potential issues with broken branches.

Move container plants to a partially shady location if they are in a consistently sunny area.

You should provide frequent care to your plant throughout the fall.

Up until your plant reaches dormancy in the cold winter months, continue to water it in cases of little to no rainfall to ensure the soil stays moist and the plant stays productive.

Make sure it received plenty of direct sun as well.

Rake up any fallen fall foliage to deter pests and diseases, as bacteria can easily grow in the fallen leaves at the base of the plant.

While your plant is dormant in the winter, let it rest. You’ll need to provide only minimal care at this time.

Water your plant infrequently, providing it with water it only after the soil dries out to avoid waking it up.

At the very end of winter, before new growth begins, prune away dead, diseased, or overcrowded branches to jumpstart fresh growth in the spring.

If you have a potted variety, you can overwinter it indoors in bright sunlight, and you can possibly enjoy the harvest from your plant throughout the season.

Common Pests & Diseases

Common issues for Japanese maple based on 10 million real cases

Brown spot

This infection can cause brown spots or patches to appear on the plant.

Learn More

Plant dried up

The entire plant may dry out due to dieback or normal seasonal dormancy.

Learn More

Scars

Any light-colored markings that appear on stems but which do not enlarge or multiply are simply scars that have healed.

Learn More

Fruit withering

Fungal infection or normal ripening can cause the fruit to dry out.

Learn More

Black spot

Infection by the black spot pathogen causes black spots or patches to appear on leaves.

Learn More

Underwatering

A lack of water will cause the leaves to gradually turn yellow starting at the base of the branch while the entire plant appears to wilt.

Learn More

Treat and prevent plant diseases.

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

More About Japanese Maple

Plant Type

Tree, Shrub

Lifespan

Perennial

Spread

6 m

Bloom Time

Spring

Flower Color

Red

Purple

Leaf Color

Green

Red

Orange

Yellow

Flower Size

6 to 8 mm

Plant Height

4 to 15 m

Name story

Japanese maple

Palmate maple

Compared with other maple trees, this particular maple tree has deeper lobes which is similar to the typical "palmate" shape. Hence, it is also called a palmate maple.

Usages

Environmental Protection Value

It has strong resistance to sulfur dioxide and smoke and dust, and can purify air.

Garden Use

View More Info

Find your perfect green friends.

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

Common Problems

Why does my japanese maple not change color?

Why do the branches look short and stunted?

Why should the leaves be removed in the fall?

Caring for a New Plant

The following pictures and instructions for woody plant are aimed to help your plants adapt and thrive in a new environment.

Picking a Healthy Woody Plant

Check Its Health

Whole Plant

Symmetrical crown, evenly distributed branches, full and compact shape, no excessive growth, close internodes, and uniform leaf size.

Branches

The branches are not withered, and the trunk is free of boreholes or damage.

Leaves

Check the inside of the plant, shaded and overlapping areas, back of leaves. Even colour, no yellowing, no brown spots, no crawling insects, no cobwebs, no deformities, no wilting.

Stems

No mold, browning or soft rot at the base of the plant.

Health Troubleshooting

Whole Plant

Branches

Stems

Leaves

1 Asymmetrical crown or missing, uneven branching: prune the weak and slender branches of the larger portion of the asymmetrical crown.

2 Internodes are longer in the upper part, leaves are sparse and smaller on top: increase light intensity or duration.

1 Dry branches: check if the branch is still alive by peeling back a small section of bark and trim away any dry branches. Watch out for signs of insect infestation inside the branch.

2 Bark with holes: inject insecticide into the holes and apply systemic insecticide to the roots.

3 Damaged bark: brush on a wound-healing agent, and avoid getting it wet.

Mildew, browning, or soft rot at the base: place the plant in a ventilated, dry environment and water with fungicide.

1 Uneven leaf color and yellowing: prune yellow leaves and check if there are signs of rot at the base of the plant. Spray with fungicide for severe cases.

2 Brown spots or small yellow spots: place the plant in a ventilated area and avoid watering the leaves. Spray with fungicide for severe cases.

3 Tiny crawling insects on the back of leaves or spider webs between leaves: increase light exposure and spray with insecticide for severe cases.

4 Deformations or missing parts on leaves: determine if it's physical damage or pest infestation. Linear or tearing damage is physical, while the rest are pests. Spray with insecticide.

5 Wilting leaves: provide partial shade and avoid excessive sun exposure. Remove 1/3 to 1/2 of the leaves for severe cases.

Treat and prevent plant diseases.

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

Check Its Growing Conditions

Soil Check

Soil should smell fresh like after a rain and no musty odor.

Light Check

Check the light requirement of the plant and if it match with planting location.

Temperature Check

Check if the current outdoor temperature is too low or too high.

Condition Troubleshooting

Soil

Ideal Temperature

Suitable Light

Potting mix soil, Peat moss mix soil

Soil

Soil smells musty or foul: check the root system for decay, place the plant in a ventilated, dry environment, and water with fungicide.

-10℃ to 35℃

Ideal Temperature

Outdoor temperature is not suitable for the plant: wait until it's a more favorable temperature for growth.

Partial sun, Full shade

Suitable Light

Insufficient light: Lack of light can result in fewer leaves and branches, and prevent flowering. Move plant to sunnier spot if possible.

Adapting Your New Woody Plant

Step 1

Repotting

Step 2

Pruning

Step 3

Watering

Step 4

Fertilizing

Add a small amount of base fertilizer during transplanting or repotting. No other fertilizer needed for the first month.

Know the light your plants really get.

Find the best spots for them to optimize their health, simply using your phone.

Plants with Same Care Needs

Indoor

Requirements

Partial sun

Ideal

About 3-6 hours sunlight

Full shade, Full sun

Tolerance

Less than 3 hours of 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

Know the light your plants really get.

Find the best spots for them to optimize their health, simply using your phone.

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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

Insufficient light

Japanese maple is a versatile plant that thrives in full sunlight but can tolerate partial shade. While it can adapt to different light conditions, when grown indoors with insufficient light, subtle symptoms of light deficiency may arise.

(Symptom details and solutions)

Slower or no new growth

Japanese maple 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.

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.

Leggy or sparse growth

The spaces between leaves or stems of your japanese maple 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.

Solutions

1. To optimize plant growth, shift them to increasingly sunnier spots each week until they receive 3-6 hours of direct sunlight daily, enabling gradual adaptation to changing light conditions.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.

Excessive light

Japanese maple thrives in full sun exposure but can adapt to partial shade. Although sunburn symptoms occur occasionally, they are generally tolerant of different light conditions due to their resilience.

(Symptom details and solutions)

Chlorosis

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

Sunscald

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

Leaf Curling

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

Wilting

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

Leaf Scorching

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

Solutions

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

Discover care info about seasonal tips, plant diseases, and more?

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

Japanese maple 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 wrapping the trunk and branches with materials such as non-woven fabric or cloth. 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

Low Temperature

Japanese maple 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, the branches may become brittle and dry during springtime, and no new shoots will emerge.

Solutions

In spring, prune away any dead branches that have failed to produce new leaves.

High Temperature

During summer, Japanese maple 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, the tips may become dry and withered, and the plant becomes more susceptible to sunburn.

Solutions

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

Discover care info about seasonal tips, plant diseases, and more?

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