Seedling transplantation should be carried out before germination in spring. Medium and small seedlings should be bare-rooted, and large seedlings should be covered with soil balls. During the growth period, apply an appropriate amount of liquid fertilizer mainly phosphate fertilizer 1-2 times. Increase watering from June to July; apply phosphorus and potassium fertilizer in autumn. Seedlings can be released from the nursery after 2-3 years of cultivation. Pests include giant moths, thorn moths and aphids.