Pruning time is mainly after flowering and before germination.
1. Cutting: cutting is to cut a part of the branch. After cutting, new branches will appear from the branches below the cutting mouth, and two or four new branches can appear from the branches below the cutting mouth. By cutting, you can shorten and thicken the branches.
2. Thinning: thinning is to completely cut off the branches from the base of the branches. The way of thinning is to make the crown loose, improve the permeability, and reduce the amount of branches and leaves. Only by combining the two can prune the bougainvillea quite well.
1. For the cutting method, it can be divided into heavy short cutting, medium short cutting and light short cutting according to the weight. The so-called heavy short cutting is to cut off a large part of the branches, one third to one quarter of the remaining parts, and the other cutting completely. This kind of cutting is mainly carried out in the dormancy period of leaves, which will affect the number and direction of branches after next year's re germination, and it is very helpful for the adjustment of plant shape. About half of the branches are cut off in the middle short section, and about a third to a quarter of the branches are cut off in the light short section, most of which are reserved. As for pruning, it depends on the direction of the branch and the shape of the tree.
2. The method of thinning can be carried out in dormancy period or growth period. It is mainly to cut off the small, weak and dense branches inside the crown, so as to prevent the trunk from being too bulky, affecting the ventilation and light transmission, so as to improve the occurrence of diseases and insect pests.
The pruning of the bougainvillea triangularis can be carried out by using these methods comprehensively. In order to keep the growth of the bougainvillea balanced and avoid the growth of some branches being too strong and some branches being too weak, the development of this branch is relatively balanced and the direction is relatively reasonable. The new shoots and branches produced during pruning should be kept as far as possible with external branches and partial branches. After several years After trimming, it will become very beautiful.
