How to raise osmanthus (how to raise osmanthus and how to water it)

1. In terms of soil, Lagerstroemia indica has strong environmental adaptability and can be applied to general cultivated soil. If conditions permit, you can choose deep and fertile sandy soil for cultivation, which is most conducive to the growth of Lagerstroemia indica.

2. In terms of watering, Lagerstroemia indica can resist drought and avoid waterlogging. You can water it once a year before germination in spring, once with frozen water after defoliation in autumn, and pay attention to "no watering" at other times. Water in spring drought 1-3 times; Drainage should be done well in rainy season to avoid root rot caused by accumulated water; There is generally no need to water in autumn.

3. In terms of light, the growth of Lagerstroemia indica needs sufficient light, otherwise there will be few or no flowers in flowering period, and what is more serious is that the whole plant will grow weak.

4. In terms of temperature, the grown Lagerstroemia indica plants have strong cold resistance, but the cold protection and heat preservation of seedlings must be done well. After more than three years of cultivation, the heat preservation can be stopped.

5. Fertilization, similar to watering time, is applied once before germination in spring and once after defoliation in autumn. It can be smeared with human excrement or sesame sauce residue, which can promote the growth of plants in the coming year to be more vigorous and the flowering period to be more lush and bright.

6. With regard to pruning, since the inflorescence of Lagerstroemia indica is planted at the top of the new branches in that year, it is necessary to pay attention to the pruning and retraction of the annual branches, which is conducive to concentrating nutrition and making the branches 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 the consumption of nutrients and ensure the formation of a good crown on the upper part of the plant trunk.

7. In terms of pests, Lagerstroemia indica is susceptible to pests such as scale insects, yellow thorn moths and giant salamander moths, and measures such as spraying should be taken in time to prevent and control them.