What are the factors that affect the flowering of crape myrtle?

Reason 1: No shaping and pruning during the growth period .

If the branches are not properly pruned during the growing period, it will not only affect the beauty of the plant shape, but also consume a large amount of nutrients, which is not conducive to the germination of flower buds, thereby affecting normal flowering and resulting in less flowering.

Reason 2: The room temperature is too high in winter

Too high a room temperature affects the normal dormancy of the plant, causing the physiological functions to continue vigorously and consuming nutrients, leading to premature germination and leafing. In the next year, there will be few or no flowers due to the weakness of the plant during the normal growth period.

Reason 3: High salinity in the soil

The most suitable soil for the growth of crape myrtle is slightly acidic and neutral soil. If it is planted in soil with a salt and alkali content exceeding 0.1% and a pH value exceeding 7.5 , it will affect the normal growth and flowering of the plant.

Reason 4: Unsuitable light and temperature

The native place of crape myrtle is mainly a high temperature climate, so during maintenance, care should be taken to maintain a temperature suitable for the normal growth of the plant, otherwise it will affect its normal physiological functions, such as transpiration and photosynthesis, and then affect the production and storage of required nutrients, resulting in insufficient nutrient supply during the flowering period and difficulty in flowering.

Reason 5: Being attacked by pests and diseases

The invasion of various diseases and pests will seriously affect the accumulation of nutrients and the normal growth of the plants, and can easily cause the occurrence of flower and bud drop.

In addition to increasing the plant's resistance to diseases and insect pests through reasonable maintenance and management, it is also necessary to spray pesticides in a timely and appropriate manner to effectively prevent and control diseases and insect pests.

Reason 6: Excessive or insufficient water and fertilizer

If excessive water and fertilizer are applied during the growth period of Crape Myrtle, the branches and leaves will easily grow too long. Most of the nutrients originally supplied to flower buds and flower buds will be consumed by organs such as roots, stems and leaves, resulting in a lack of nutrients needed for the flower buds during the flowering period, causing fewer or no flowers to appear.

In addition, excessively high concentrations of fertilizer are applied during the bud formation period, and the amount of watering is not properly controlled, so that the excess fertilizer in the soil cannot be diluted, and root burn occurs, which can easily cause flowers and buds to fall off. Insufficient water and fertilizer supply during the growth period of flowers will inhibit the normal growth of the plants, and it is also easy to have few or no flowers.