Pruning by flowering period: The flowering period of this plant has two stages, one is spring and the other is autumn, so pruning by season is also divided into these two stages.
1. Prune after spring. It can't be pruned in spring, so this plant can't be pruned until the spring flowering period is over. This pruning is relatively simple, that is, just cut off the withered flowers, but pay attention to cutting them on the buds.
2. Prune after autumn flowers. This pruning will not begin until the end of flowering. This pruning is necessary, that is, when pruning the residual flowers, be careful not to cut them too long and try to cut them as short as possible.
Third, according to the pruning type: 1. Different kinds of pruning differences. This plant can be basically divided into two kinds: native hydrangea and exotic hydrangea. The former pruning is relatively simple, that is, just cut off the withered flowers. The latter needs pruning to help plants form a ball more quickly. First, cut the circumference a little shorter, but the middle can be a little shorter than the circumference, so that the ball will be formed faster.
2. Trim the differences between different regions. In the north, because the temperature is relatively low, the conventional pruning method-pruning after flowering can be adopted. In the south, because the weather is not particularly cold, it is easy to have buds in early spring, and then the flowers will be broken in advance. Therefore, pruning should be carried out according to the condition of the plants at this time to ensure that there is room for the plants that bloom behind, without affecting the appearance.