1. When the new branch of the plant grows to about 4cm, the new bud can be picked off at the top to promote the growth of the next branch.

2. The plants are ready for the flowers to bloom in summer. At this time, it is necessary to cut off dense branches, because too many branches will block the penetration of light and consume some nutrients excessively, which will be more conducive to bud germination after pruning.

3. After flowering and defoliation, the residual flowers and messy branches should be pruned in time, and some long and weak branches of plants should also be pruned together, which will help the plants to recuperate.