(1) In order to increase the amount of flowers, it is necessary to make the crown ventilated and transparent, and the crown should be shaped into a gratifying shape from the beginning of seedlings. Generally, young trees are mainly shaped, and the main branches should be lightly cut to enlarge the crown and make it rapidly take shape; Adult trees mainly balance the tree potential, so it is necessary to master the pruning of weak branches to enhance the tree potential, and the pruning of strong branches to alleviate the tree potential; Old trees should be pruned again, so that the preserved buds can get rich nutrition and grow strong branches; Flowers and trees that grow vigorously should be lightly pruned. If the pruning is too heavy, it is easy to cause the branches to grow vigorously, which is not conducive to flowering and fruiting.

(2) Pruning can be divided into natural pruning and artificial pruning. Natural style is mostly used for foliage and flowering flowers and trees with higher plant types, such as cycads, sundew, brown bamboo, turtle-backed bamboo and so on. And they are generally slightly pruned and drained to make the distribution and arrangement of branches more scientific, reasonable and beautiful. The manual method is to trim into different tree shapes according to people's different hobbies and characteristics of flowers and trees, such as pruning Euonymus japonicus, Euonymus japonicus and Pittosporum japonicum into spheres; Prune drooping peaches, Shui Mei, Tanchun, etc. Become a natural drooping branch; Peony, rose, begonia, jasmine, chrysanthemum, etc. Be trimmed into blocks.