There are two reasons why gardenia flower buds fall: one is that the pot soil is often too wet or the drainage is not smooth, and the other is that the fertilizer is insufficient or the unfermented raw fertilizer and thick fertilizer are applied.

solution

1, should be placed in the open air and in the shade. After the initial buds are formed, it is necessary to apply 1~2 times of thin topdressing to increase the nutrients needed for flowering.

2. The basin soil should be slightly dry, and the drainage must be smooth.

3, avoid watering too much, too often, causing the pot soil to be too wet and causing the buds to fall off.

Extended data

The reason why gardenia doesn't bloom.

First, reduce or increase the amount of fertilizer.

1, reason

When it grows, if there is too much fertilizer, it will make the plant grow white and affect flowering. If there is insufficient fertilizer, there will be lack of nutrition and there will be no flowering. Even if there are a few flowers, they will wither immediately

Step 2: Solutions

It is necessary to reduce or increase the amount of fertilization, mainly phosphorus and potassium fertilizers, so that flower buds can form as soon as possible, so as to bloom.

Second, reduce or increase light.

1, reason

It likes cool environment. If summer shading is improper, too strong light will burn it and affect flowering. But the light should not be too weak, especially in winter, otherwise it will also affect its growth.

Step 2: Solutions

Give it proper shade in summer to avoid too strong light; Increase the light time in autumn and winter, so that plants can grow normally.

Third, choose the right soil.

1, reason

It likes acidic soil. If the soil with too high alkalinity is used, the plants will turn yellow and will not bloom.

Step 2: Solutions

Choose suitable soil, mainly acidic.

Fourth, appropriate pruning.

1, reason

If you don't prune for a long time, the branches will be too long and messy, which will consume a lot of nutrients, affect the normal growth of plants, and lead to failure to bloom.

Step 2: Solutions

When you see its branches are too long or messy, you should trim them properly to prevent them from being too dense, so that the buds will get more nutrition and bloom more easily.

References:

Ningbo Rural Economic Comprehensive Information Network-Causes and Prevention of Gardenia Flower Bud Falling off