1、 Winter pruning
Winter is the dormancy period of roses. At this time, it has stopped growing. Proper pruning can reduce the consumption of nutrients. The over dense branches should be thinly cut, and the dead and weak branches should be cut off to promote the growth of new branches in the next year. The winter shear should not be too heavy, otherwise it is difficult to recover after spring p>
2、 Spring pruning
Spring is the growth period of roses, which can recover quickly after pruning. In order to ensure that nutrients can be supplied to new branches, the old branches should be appropriately shortened. Especially for the old branches over 5 years, flowering has become more and more difficult and needs to be cut off. At the same time, the branches with weak growth should also be cut off to avoid consuming nutrients p>
3、 Post flower pruning
Rose flowers need to consume a lot of nutrients. Proper pruning can preserve nutrients and help it grow. Remove its remaining flowers in time and cut off the weak branches at the same time. The dense branches, Cross branches and overlapping branches should also be cut off to increase the internal ventilation and light transmission and help it recover quickly p>
4、 Pruning after illness
After the rose suffers from diseases and insect pests, in order to prevent the deterioration of the disease, it is necessary to cut off all the diseased branches and leaves. Don't throw it away after cutting it off, because there is still the possibility of infectious bacteria. They should be destroyed in a centralized way. In order to avoid recurrence, it needs to be sprayed with drugs p>