What environmental factors should Wei Zi pay attention to?

Lagerstroemia indica has strong adaptability to the environment and can be cultivated in general soil. If conditions permit, you can choose deep and fertile sandy soil, which is most conducive to the growth of Lagerstroemia indica.

2. Water shortage problem

Lagerstroemia indica can resist drought and waterlogging. Water once a year before germination in spring, once after defoliation in autumn, and pay attention to "no watering" at other times. Water should be poured 1-3 times in spring drought, and drainage should be done in rainy season to avoid root rot caused by accumulated water; Generally, it is not watered in autumn.

3. Lighting equipment

The growth of Lagerstroemia indica needs sufficient light, otherwise there will be few or no flowers in flowering period, which will seriously weaken the growth of the whole plant.

4. temperature.

When Lagerstroemia indica is mature, the plant has strong cold resistance, but it is necessary to do a good job of cold protection and heat preservation of seedlings. After cultivation for more than three years, the heat preservation can be stopped.

5. Fertilization problem

Same as watering time, apply fertilizer once before germination in spring and once after defoliation in autumn. It can be smeared with human excrement or sesame paste residue, which can promote the plants to grow more vigorously in the second year and bloom more luxuriantly in the flowering period.

6, finishing

Attention should be paid to re-pruning the annual branches to concentrate nutrition and make them grow stronger. Long branches, drooping branches, pests and diseases, dead branches, slender branches, endogenous branches, etc. should be cut off, and the side branches at the lower end of the plant trunk should be cut off in time during the young tree period to reduce nutrient consumption and ensure the formation of a good crown on the upper part of the plant trunk.

7. Pests

Lagerstroemia indica is easily infected by pests such as velvet louse, yellow thorn moth and giant salamander moth, and should be controlled by spraying.