1, which is pruning after flowering to remove pests and diseases, too long branches, internal branches and weak branches. , mainly to increase ventilation and light transmission, but also to cut again.
2. Pruning of short branches and long branches is mainly carried out in summer, mainly to control vegetative growth and turn vegetative growth into reproductive growth, which is conducive to more and better flowering.
3, winter is light cutting, mainly to cut off branches of pests and diseases, cross branches, etc. , mainly plastic.