For pruning flowers and shrubs, they should fully understand their growth habits before pruning. According to their natural growth patterns, they should be targeted and timely and reasonably pruned in order to achieve the best ornamental effect in landscaping and beautification.
First, flowering shrubs that bloom on the shoots of the year, such as hibiscus, crape myrtle, pearl plum, and rose, are suitable for pruning in the winter or early spring. Such flower and shrubs differentiated flower buds on the new shoots that were issued in the spring of that year. The flowering period was in late spring or summer and autumn. Winter pruning mainly consisted of short cuts and thin branches. Short cuts generally adopt the "strong branch light shear, weak branch heavy shear" method. For strong branches, just cut 1/5-1/4 of the total length of the branches. Removing the shoots from the shoots can stimulate the sprouting of most of the lower half of the shoots, spreading the nutrients of the shoots, making the shoots produce more short and middle branches and more easily forming flower buds. For the rejuvenation of weak trees, old trees, and old and weak branches, the total length of the branches is generally cut off by 2/3-3/4. Thinning is to remove branches from the base, can adjust the distribution of branches, improve ventilation and light transmission conditions, is conducive to the growth of tree branches internal growth and flower bud differentiation, enhance the ornamental effect of trees. Branches are mainly sparsely dense branches, aging branches, and pests and branches. Due to the cold weather in winter and the spring drought in the north, pruning should be postponed until the early spring temperatures are about to pick up.
2. Flowering shrubs formed on the branches of the previous year, ie flowering shrubs with long leaves or mosaics after flowering in early spring, such as twigs, forsythia, green peach, spring, lilac and cherry blossoms. It was formed on the branches of the previous year and was opened in the spring of the following year. Therefore, the general pruning was carried out from May to June after the flower faded. If it is pruned in winter, the buds formed in summer and autumn will be cut off, affecting the ornamental effect in the coming year. However, if there are too many flowering branches on one branch, the excessive consumption of nutrients without pruning will cause the flowers to be small, the flowering period is too short, and it is easy to fall off. In order to improve the ornamental effect, the short and long branches may be properly removed. About 7 groups of flower buds can be left short.
3. Flower buds Flowering shrubs that grow on perennial branches, such as redbuds and sticky sea breams. Although most flower buds are born on biennial branches, they can also differentiate flower buds when nutritional conditions are suitable. The amount of pruning of this type of flower shrub should be as small as possible. In the early spring, the dried part of the tip of the shoot should be cut off. The growing season should prevent excessive growth of shoots in the year, affect flower bud differentiation, and can pick up the heart and make nutrition more concentrated.
In four or more times a year, multiple shoots, multiple flowering shrubs, such as rose, can be used in the dormant period to short-cut or retract strong branches in the current year, while cutting off cross-branches, diseases and insects, and branches, weak branches and internal Get through the sticks. The flower buds of Chinese rose are mostly buds from the top of new shoots that were born in the same year. As long as new branches are continuously drawn during the year, they can continue to bloom. Therefore, in the growing season, whenever the flowers are thanked, trimming should be carried out immediately, and the buds should be cut short at full bloom. Clipping buds can germinate and shoot quickly, forming flower buds, flower shears, and then shearing. This repeats and the flowering continues.
In addition, for the branches and branches of shrubs, such as clams and red juniper trees, the young shoots whose branches are bright (the old branches tend to be darker in color) are often reserved for winter viewing. In order to make it watch for a long time, it is not usually pruned in autumn and winter, but it is carried out before sprouting in early spring so that the winter branch can fully exert its ornamental effect. When pruning, it is necessary to re-cut, leaving only 15-20 cm above the ground, and the rest will be cut off to promote more new branches, while gradually removing the old stems. For the fruit flower shrubs such as holly, gold and silver wood, etc., in order not to affect the autumn fruit, after the flower can not be trimmed or cut off some dense branches properly, so that ventilation, light transmission.
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