In spring, change pots for pruning, leave 20cm for each branch, remove the remaining branches, and properly thin the branches. In spring, the flowers are just fading, so it is necessary to remove the residual flowers in time to concentrate the nutrition on the flower branches. It is also necessary to reshape and remove the overgrown branches. As long as the diseased branches and dead branches are found, we should also pay attention to the direction of pruning and the smoothness of the incision. First, changing pots and pruning Spring is a good time to change pots. Strong germination ability and many branches should be combined with changing pots and pruning. Leave 20 cm for each branch and remove the upper branches. Moreover, it is necessary to prune the branches properly, remove some branches that are too dense, and remove weak branches. This can promote the growth of short branches, make the plant plump and increase the number of flowers. Second, the pruning of spring flowers just failed after flowering. It is necessary to remove the residual flowers in time, which can reduce the consumption of nutrients, concentrate nutrients on the flower branches and promote the formation of flower buds in the later stage. At the same time, it can prevent flowers from rotting in the branches and reduce the possibility of bacteria breeding. Third, cosmetic plastic surgery because it is necessary to emphasize aesthetics, plastic surgery should also remove long branches and increase transparency. Some branches of diseases and insect pests and withered branches should be pulled out as long as they are found. When trimming, pay attention to the direction of trimming and the smoothness of the incision, so as to make it open every year and ensure a certain beauty.

Mei (scientific name: plum blossom; Zucc。 ), alias Chun Mei, plum, acid enzyme, etc. , belonging to Rosaceae Prunus. Mei, a small tree, is 4- 10 m high; Bark light gray or greenish, branchlets green, smooth and glabrous. Leaf blade ovoid or elliptic, petals obovate, white to pink; The fruit is nearly spherical, yellow or greenish white, pilose and sour; It blooms in winter and spring and bears fruit in May-June.

It is cultivated all over China. Plum blossom can extract essence, flowers, leaves, roots and seeds can be used as medicine, and fruits can be eaten, salted or smoked to make dark plum medicine, which has the effects of relieving cough and diarrhea, promoting fluid production and quenching thirst. Plum blossom can resist the harm of root-knot nematodes and can be used as the rootstock of drupe fruit trees. The poem about plum is "the cold plum on the stream is full of branches at the beginning, and the frosty moon shines on Fang Fei at night"; "The frost and wind are shaking down, and Mei has reached the south branch". Plum blossom is the first of the top ten famous flowers in China. Together with orchids, bamboos and chrysanthemums, they are called "four gentlemen", and together with loose bamboo, they are called "three friends in cold years".