Introduction experiment of fast-growing Lagerstroemia speciosa

The fast-growing Lagerstroemia speciosa (1) is also called Lagerstroemia speciosa. Its annual diameter growth can reach about 3 cm, and the trunk diameter of two-year seedlings is more than 5 cm. Its growth rate is three times that of common Lagerstroemia indica. After pruning, the branches are thick, the crown is full, the branches are thick and the tree shape is beautiful.