2. The pruning of common flowering shrubs should be based on the premise of preserving the original crown as much as possible, and the method of pruning and dewatering should be adopted to avoid heavy pruning.
3. Shrub twigs should be properly drained, strong branches should be properly cut short, drooping weak branches and surface budding branches should be drained, and long branches outside the crown should be trimmed in time. Residual flowers and fruits should be cut off as soon as possible if they have no ornamental value or other needs. Hedges with few branches and leaves or weak growth potential should be cored.
4. Trim the older and stronger color blocks. First, use pruning shears to cut off some older and stronger branches according to the established height, and then use large flat shears to level off, with uniform edges, so as to achieve the overall effect.
5. Shrubs planted for many years should renew old branches year by year and cultivate new branches. Shrub whose trunk has been planted for many years should adopt the cutting method of alternately retracting the main branches to control the crown every year to prevent the tree from becoming stronger and weaker.
6. When pruning shrubs dotted with bulbs, large flat shears should be used as far as possible to ensure that the overall tree shape is round and beautiful, and the cut mouth is neat.
7. Shrubs planted in patches should be pruned into clumps, high in the middle and low on both sides, or low in the front and high in the back.
8. When there are many shrub varieties, pruning should highlight the main varieties and leave appropriate growth space.
9. When pruning dormant flowering shrubs, in order to control the height of trees, strong branches should leave 3-5 buds to promote new branches; Shrub flowers that can bloom several times a year should be cut off in time to promote re-flowering.
10, perennial flowering shrubs should pay attention to cultivate and protect the old branches, cut off dense branches, weak branches, dead branches or pests and diseases.
1 1, the pruning height of plastic shrubs and hedges should meet the design requirements, the plane should be flat, the side should be vertical, the arc should be soft, and the plants should be pruned in time.
12, the trimmer must be trimmed according to the specified shape, and it is not allowed to change the shape at will.
13, according to the diseased plants and insect plants, heavy pruning should be taken according to the situation of seedlings in the pruning process to ensure the survival of seedlings, reduce the harm of pests and diseases, and combine pruning with chemical control.
14, clean the pruned branches and leaves while pruning.
15, the same shrub should be pruned within the working day of the day, so as not to affect the appearance.
16. There are no obvious dead branches, broken branches and waste branches after pruning.