In the growth period, pruning is needed to ensure the more vigorous growth of plants. At the beginning of germination in early spring, each plant needs to leave 4-5 branches, which are about 40cm short cut. This helps to control the growth height of the plant, weaken the role of the top, promote the growth of the side branches and buds beside the plant, so that the plant can grow more exuberant and lush, and the plant shape is more Add the beautiful, later flowering will increase.
After the flowers have been blooming, we need to remove the broken flowers in time. Some diseased branches or slender branches should be removed, which can reduce the consumption of nutrients, accumulate the remaining nutrients, and promote the development of new branches.
Generally, the 3-year-old plants are the most vigorous ones, and the 4-5-year-old plants begin to weaken the trend of recession. You can turn the old roots out in winter, and then remove the disease and insect branches and replant them, or replant the plants with too dense branches, which can ensure the growth of the later period.