What to Do When Bonsai Trees Turn Brown

when bonsai trees turn brown

When bonsai trees turn brown, there are several possible causes. Overwatering, too much or too little fertilizer, disease or pest infestations, and improperly caring for your bonsai can all cause the plant to suffer. To ensure the health of your plants, you should consider a variety of different solutions to help you fix the problem. To begin, read this article for some of the most common reasons that your bonsai trees are going brown.


Overwatering is one of the most common problems that new bonsai enthusiasts encounter. If you’re concerned about your bonsai’s health, here are a few things to keep in mind. This mistake is one of the most common causes of bonsai trees turning brown. Incorrect watering can lead to stunted growth and a reduced root system. It’s important to water your bonsai only as necessary. If you are unsure of the proper watering schedule, refer to the instructions that came with your bonsai.

Overwatering may also lead to a fungal infection. You can check the foliage of your bonsai tree for insects. If you find any, remove it from the pot and inspect the root mass for insects. If you see any, post photos on a bonsai forum to find out if it’s something else. This way, you’ll be able to get the best advice on how to deal with the problem before it’s too late.

If you have a poor branch growth in your bonsai, you may be dealing with a fungal infection or an insect infestation. To deal with these issues, you can use an anti-mildew agent or a copper-based fungicide. Another common cause of bonsai trees turning brown is over-watering. Taking care of the roots is an essential part of bonsai care. A bad root system can choke your Bonsai and make it unable to grow properly.

Lack of fertilizer

Many people wonder why lack of fertilizer causes bonsai trees’ leaves to turn brown. The truth is that your bonsai needs a consistent supply of nutrients to thrive. The best way to prevent the problem is to give your bonsai a regular fertilizer application. This is something that can be done by following a few simple steps. Below are some of the most common reasons why your bonsai trees’ leaves turn brown.

Poor branch growth can be caused by a variety of factors, including improper nutrition and mineral-poor soil. A simple application of FRIT mineral supplement can perk up a dying tree. A poor branch may also be caused by mold or mildew. Fungicides can help control these issues. Bonsai can also suffer from cankers, or diseases that develop “under the skin.” This is especially common after trimming. Applying a cut paste to the affected area can encourage the tree to heal properly.

A lack of water may also cause brown leaves on your bonsai. Inadequate watering can damage the roots, making them unable to provide the necessary nutrients. Watering your bonsai twice a week can prevent your bonsai from becoming dehydrated. Watering the leaves of your bonsai is crucial to its health. Remember that the amount of water your bonsai needs depends on the species and type of water it gets.


There are many different reasons why your bonsai tree is turning brown. Depending on the type, it may be caused by root rot, overwatered soil, or poor ventilation. To prevent this, you should place the treated bonsai tree in a well-ventilated area with good lighting. If you can, run a fan in the area to promote air movement. Also, keep the branches dry and do not allow any moisture to build up. If the fungus persists, use an antifungal to treat the plant.

Bacteria and fungi are common causes of brown and mushy roots on bonsai trees. Both of these conditions are highly detrimental to the health of your plants. If you suspect your bonsai tree is suffering from one of these diseases, you should take immediate action to treat it. If you wait too long, the fungus may spread and kill your plant. The good news is that many types of bacteria and fungi are easily treated.

Black Sooty Mold is a fungal disease that affects the leaves. Affected leaves may appear with dark brown or black spots. Fungicides can be applied to your bonsai’s leaves to treat the disease. Once the symptoms are visible, you can move the plant to a sunny, well-ventilated area where the temperature stays stable. It is important to treat the fungus immediately.


The first noticeable signs of a bonsai’s decline are pale mottling, webbing, and hanging leaves. The insects that infest your bonsai may also be the source of aphid infestation. While these insects generally do not cause harm, they can be a nuisance if they build up in large numbers. In order to kill them, you can replace the soil around your bonsai with a fresh one.

If you notice that your bonsai trees are losing their leaves, they might be the result of one or more of the following problems: aphids, leaf fungi, and mildew. Aphids eat the sap from bonsai leaves and cluster together on the underside of leaves. They also secrete sugary “honey dew” droplets that ants love to feed on. The same goes for other fungi and diseases that can affect your bonsai. A fungus known as black spot can damage the leaves of your bonsai tree. If it does, remove the affected leaves and apply an appropriate treatment. Powdery Mildew and Sooty mould are common and will require a treatment that will kill both.

Aphids and spider mites feed on the nutrients found in the leaves of your bonsai. When these creatures feed on the leaves, they rob the plant of nutrients and cause the leaves to turn brown. These pests are particularly difficult to detect in indoor bonsai, so you should check your trees regularly for any signs of browning and webbing. You can also purchase predator mites and assassin bugs to control these pests.


There are two basic types of pruning. Structure pruning and defoliation. Structure pruning involves removing large branches from your tree during the summer. This action will help you shape your tree’s structure, and is irreversible. This technique is less stressful than pruning with pruning scissors. Hand pinching the foliage is a good alternative to using pruning scissors. The benefits of hand pruning are obvious. However, you should follow the instructions carefully.

Once the tree starts to show signs of life, you can prune it moderately. Use pruning shears and tepid water and prune the affected branch, letting the branch rest for two to three minutes before you prune it again. After pruning, prepare the new soil mixture and water the tree thoroughly. If the damage is extensive, you may want to wait until the branch has healed before pruning again.

In addition to removing the diseased branch, you should inspect the roots of your bonsai tree. Check for rotted or dead roots and tight root balls. Cut them if necessary and untangle the root mass. This will allow you to determine the extent of the root problem. If you see a white spot on the leaf, it may be caused by fungal infection. It is important to treat it with anti-fungal medication to avoid a serious infection.

Root rot

When your bonsai trees start to turn brown and die, you might be dealing with root rot. Symptoms of this problem include squashed trunks and yellowing leaves. If you notice any of these symptoms on your tree, it may be time to remove the tree from its pot. If you’ve noticed these symptoms, it’s time to diagnose the problem. Follow the steps below to identify the source of the problem.

If your bonsai tree’s roots start to turn brown, you’ve probably discovered a problem. Root rot is an issue common to indoor plants as well as outdoor plants. It can be caused by several factors, including overwatering, improper soil drainage, or other underlying issues. Insufficient light and fertilizer can also cause the condition. A brown root pad is the most obvious sign of a root rot problem. Healthy, white roots should be firm and appear white.

Another symptom of a serious problem is brown, dry leaves. It may be caused by a variety of factors, but in most cases, it’s due to a fungus. If you’re experiencing this symptom, you should consult a plant professional. While some bonsai experts recommend using pesticides and applying fungicides to the soil, this solution may not work in all cases.