The longan tree is good. Arillus longan is an evergreen tree, with a height of more than10m, many branches, large inflorescences, round fruits, clusters, grayish yellow color, mature in summer, good longan trees, high fruit yield and long economic life after planting for 3-4 years. Young longan trees should pay attention to topping and pruning, and reasonable fertilization can bear fruit early and yield high. Litchi seedlings can bear fruit after 2-3 years of cultivation. When the crown width is greater than 1 m, the fruit can be kept and allowed to grow, and the roots can be fertilized to promote the high yield of fruit trees.