Pruning methods Pruning periods are divided into winter pruning, spring pruning and post-flowering pruning. Pruning in winter and spring is carried out after the leaves of roses fall and before germination. Cut off the vigorous branches properly to ensure the yield of flowers. The branches or lots of rose with poor fertilizer and water conditions, weak growth and many old branches should be pruned appropriately to achieve the purpose of concentrating nutrition, promoting the germination of new branches and restoring growth; Prune flowers after harvest. It is mainly used for thinning honey branches and horizontal branches from branches with vigorous growth and dense branches, but it should be lightly cut, otherwise it will cause imbalance between underground and ground, resulting in adverse consequences.

Pruning technology plant cultivation, although the newly planted plants will still bloom, but the branches are thin and short, the flowers are small, and the petals are few, which is not suitable for cut flowers. In this period, pruning should not only cut off dead branches and diseased branches at any time, but also pick buds at any time to avoid wasting nutrients. Until thick branches develop from the base of the plant, then the main branches are formed by coring, and then the slender branches are gradually cut off.

The updated and pruned roses belong to shrubs. After the main branches are cut off, the growth potential will gradually weaken with time. Therefore, the old main branches must be eliminated every once in a while, and new main branches must be cultivated at the same time to maintain the growth potential and plant yield. When pruning, first cut off the old branches with weak growth potential, and keep 3 ~ 5 youngest main branches per plant, and then cut the remaining main branches to the height of 120 cm. Promote the growth of new main branches at the base of plants.

The length of cut rose flowers and the days from pruning to flowering are closely related to pruning nodes. The axillary buds of lower nodes developed into flower branches with many nodes, long branches and high grades, but the days from pruning to flowering were longer. On the contrary, the higher the pruning node position, the fewer flowering branches developed by axillary buds and the shorter the branches, but the shorter the number of meshes needed from pruning to flowering.