1. There are many kinds of flowers, and different kinds of flowers and trees have different pruning time. The pruning time of flowers can be determined as needed. If pruning before germination in early spring will cut off the flower branches, it should be pruned within 1-2 weeks after flowering to promote the germination of new buds and form the flower branches in the coming year. If you wait until autumn and winter to trim and reshape, the branches that have been formed in summer will be damaged, which will affect the flowering of the next year.

2. Pruning in growth period: During the growth period or after flowering, it is not advisable to prune too much, but to prune slightly. Usually, it is mainly to pick the heart, wipe the bud, pick the leaves, and cut off the long branches, diseased branches, dead branches and pedicels. For woody flowers, only partial light pruning can be done during this period, such as erasing the terminal buds to prevent the branches from growing again, or cutting off the long branches sprouting on the trunk, the unreasonable internal branches and cross branches, and the roots sprouting in the rhizosphere in time to keep the plant shape perfect. Don't over-prune, lest too many wounds hurt plants.

3. Seasonal pruning during dormancy: deciduous plants such as hibiscus and poinsettia. Pruning should be done during winter dormancy to promote more buds, flowers and fruits. For example, the pruning of Chinese rose and dormant period of Chinese rose should be carried out when the sap just begins to flow and the bud is about to germinate in early spring every year. Flowers should be pruned immediately after flowering; Flowers and trees mainly used for leaf viewing can also be pruned during sleep.

4, lianas, generally do not need pruning, only cut off the old and dense branches.