Cherry blossoms are mostly natural and happy trees. After the seedlings are planted, leave about 1m for pruning and fixation to promote the growth of main branches. The central trunk can be preserved in the early stage; Every spring, before germination, the main branches will be shortened by 1/3 to promote the growth of branches and expand the crown; Select 1 ~ 2 side branches in the middle and lower part of the main branch, so that they are distributed from left to right. Other medium and long branches on the main branch can be sparse, fill the space and increase the number of flowers; At the same time, the extended branches of the side branches are shortened every year, so that there are more middle and long branches in the middle and lower parts. For the middle and long branches on the side branches, thinning is the main method, and the other branches are not cut, so that the long branches germinate at the top and the short branches bloom in the middle and lower parts. Adult trees should peel off twigs and diseased branches every year to improve ventilation and light transmission conditions; Shrink the slender branches and stimulate the hidden buds below them to sprout new branches. Aging trees should be retracted and updated year by year to restore their vitality and improve their ornamental value.