Spring is the right time for pruning. It is necessary to remove the heart and top in time to control the height of plant growth. In this way, it is difficult for the lateral branches to germinate. In addition, after maintenance for a period of time, the branches are easy to grow disorderly, and even some dead branches and yellow branches will appear. In addition, the pests and diseases caused by poor ventilation will happen in spring, which is a good time to prune the branches. It is necessary to cut off the branches with poor growth, and some weak branches will not be useful.
It is very important to prune in summer and autumn. During this period, it is just after flowers bloom and fail. Some flowers will bloom and fail in summer as early as possible, and some flowers will bloom and fail in early autumn. Remove the residual flowers first, don't stay on them, it can reduce the consumption of nutrients. Leave 3-5 nodes on the branch, cut off the top, which can promote germination of new buds, and bloom in the later period.
Winter pruning is also very suitable, just in the dormancy period, at this time pruning does not have much impact on the plant. First observe the whole plant, some overlapping branches cut part, not only can reduce the consumption of nutrients, but also improve the lighting conditions, promote the penetration of sunlight.