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Why Is My Japanese Maple Not Blooming? – 8 Causes

Why my Japanese maple is not blooming

The Japanese maple is an ornamental shrub or small tree mostly found in Japan and Korea with deeply incised leaves.

It can be cultivated in many varieties. Unfortunately, plants at mature stages can also become dormant and not perform as expected.

Let’s see the reasons why the Japanese maples do not bloom.

1. Dead Branches

The tree might have some dead branches on its lower part and some in the upper part.

But first, you must confirm whether they are dead with no trace of the green coloring matter, which is chlorophyll.

How To Solve

If it doesn’t have the green tissue, you can eliminate the branch since it is no longer useful.

This will help the plant to perform better and stay healthier. Proper maintenance is essential for healthy growth.

2. Water Supply

Water is a basic need for the well-being of trees and plants. If the Japanese maple does not get enough water, it will not bloom as expected.

This case should be observed in whichever planting season you are in.

How To Solve

The only solution to this is supplying enough water to the Japanese maple. Not too much or too little.

3. Type Of Soil

The soil used to grow the maple also determines its blooming.

If the soil has a high alkaline level, then you should not expect your Japanese maple to thrive well in it.

How To Solve

The most preferred and favorable soil is loamy soil since it is slightly acidic, which favors the maple.

Thus, before you plant a Japanese maple, get to know its requirement and the best soil for it.

4. Weather Conditions

The Japanese maple may not bloom as expected due to some weather conditions of the area, such as frequent strong winds.

The climate around should not be too cold since they do not do well in such areas.

How To Solve This

You should, therefore, take note of the conditions of a certain area before planting a Japanese maple.

Another solution to protecting the maple from strong wind is growing in a protected area.

This will ensure that when there is a strong wind, it will not be affected since its foliage is fragile.

5. Dormancy

The Japanese maple may not bloom at some point when it becomes dormant.

This implies that it will either delay to bloom or not bloom at all. This mostly occurs during the winter season.

How To Solve This

Therefore, you should understand that it is a natural occurrence since the Japanese maple is a deciduous tree.

Therefore when it hits another season, for example summer, it will bloom.

You have to be patient and just provide all the essentials.

6. Pests And Diseases

Just like any plant, the Japanese maple is also prone to diseases.

Fungi cause most of these diseases. Such examples are Verticillium, Anthracnose, and Canker.

Canker usually attacks the bark of the tree.

A mild case of this will be resolved by the tree automatically, but if the infection is severe, it might end up killing the tree.

Verticillium is another disease that causes the leaves to become yellow.

It commonly affects one side of the tree, while the other side of the tree seems healthy.

Anthracnose causes some sunken bruises on the leaves, which later on rot and fall.

A mature Japanese maple tree will be able to survive this disease, but a young maple tree may not be prepared and, therefore, may end up dying.

How To Solve This

The most advised measures regarding these diseases are proper annual pruning and also annual mulching. This helps reduce the probability of the occurrence of these diseases.

7. Roots

The roots can also contribute to the behavior of the Japanese maple when it does not bloom. Girdled roots can be the cause of this, which results in the tree being leafless.

How To Solve This

You should, therefore, cut some of the roots and also ensure the tree gets adequate water.

8. Competitors

Just like other crops, the Japanese maple also has competitor vegetation, which competes with the maple in acquiring nutrients and other necessities.

How To Solve This

You should eliminate any foreign or unfamiliar shoot growing from the base of the plant.

If you let it grow, it might take over and compete with the main tree, which may result in making the tree weaker and, therefore, not bloom.


You should take proper maintenance of your plant and ensure it blooms well.

Another thing to remember is that the Japanese maple should not be planted on the west side of the house, but this can be possible only if there is a fence or a large obstacle to protecting it from the sweeping wind.

Generally, it is advisable to plant the Japanese maple on the east side of the house and slightly shaded. This will help protect it from any destruction.