In order to reduce water consumption and ensure the survival of seedlings, it is usually necessary to trim properly. When pruning, more than 3 branches shall be kept as the main branches, and the rest branches shall be cut off. The main branches to be preserved should be cut in a short way so that their height is about the same. When the main branch is cut short, the outer buds are kept. Because the buds of broccoli are opposite to each other, the inner buds and 1-2 pairs of buds under them should be removed.
In the daily maintenance of broccoli, it is necessary to prune the dead branches, diseased branches, weak branches, extra long branches and old branches, without short cutting of branches. For those sprouting and tillering branches, it is necessary to keep some, which is conducive to the renewal of old branches and the expansion of shrubs. It is necessary to adhere to the principle of "dense periphery and sparse inner bore" to ensure the ventilation and light transmission of shrubs.
Generally, the life span of Bush branches is relatively short, so pruning the old branches is indispensable in the pruning of bush. In general, broccoli only blooms on 1-2-year-old branches, but not on 3-year-old branches. Therefore, when pruning in winter or early spring, prune the old branches. Cut off the old branches that do not bloom, and pay attention to avoid cutting all branches at once, which will affect the landscape effect.
Sometimes, brocade flowers are allowed to grow without cutting, which will result in dense branches, more old branches, less new branches, less flowers and weak tree vigor. When this happens, the old branches should be cut off during the dormancy period to promote the germination of new branches.
Brocade sometimes cuts too short when it is pruned. It will lead to a significant reduction in the next year's consumption. Generally, the heavy and short cutting is carried out after the flower, and the light cutting is only carried out at other times, so as to ensure the bloom of the flower.
