When will Molly trim?
The key to pruning jasmine focuses on two time ranges. One is the growth period, that is, from spring to autumn, including two pruning, the first time around Qingming and before the germination period of jasmine; The second time is after the flower fails, in August or September. The second is the dormant state, that is, before the spring, the dead branches, pests and diseases will be cut off to let Jasmine recuperate.
First, spring pruning
Jasmine likes warmth and is afraid of cold. In early spring, the temperature has just warmed up, so there is no need to move the jasmine outdoors in a hurry. Around April, the temperature rose above 15 degrees, and the jasmine was pruned as a whole and gradually moved outdoors to receive the warm sunshine in spring.
1. First overall pruning
The first pruning in spring can be "cruel", cutting off the dead branches and leaves that have survived the winter, cutting off all the inferior side branches and buds at the bottom, and keeping only the whole four or five strong main branches. Some people who love flowers are likely to have a lot of dead leaves in the low temperature period in winter, and some basically only have main stems, so don't worry. In spring, you only need to pour pots and divide plants, as long as the roots are healthy and the stems are green. When the temperature gets warmer, jasmine will quickly grow new buds.
2. The second plastic trimming
After the new bud grows, if the shape of the plant is not round enough, don't rush to let it bloom and then prune it. This kind of pruning is mainly based on plastic surgery, and which part of the branches is relatively rare, just cut it again. Generally, if you cut a knife, two side branches will grow, and every time you cut two side branches, four side branches will grow. The more lateral branches, the rounder the plant shape, and the more beautiful and generous the flowers are.
Second, summer pruning
The flowering period of jasmine is in summer, so pruning after each flower in summer is also the premise to determine whether the next flower can bloom.
1. Prune after the first flowering
The first flowering period of jasmine is usually around May, because there are few initial florets, so it is also called "Sui Niang Hua". If there are buds after pruning in spring and you want to see flowers in early summer, keep them. Immediately after the petals fall, they are cut from the second pair of leaves under the fallen flowers. Pruning fallen flowers is not enough. Lower branches and branches with distant flowers at the bottom should also be trimmed.
2. Prune after the second and third flowers
After pruning for about a week, buds will grow on both sides of the incision, which is the next flowering branch. Spray potassium dihydrogen phosphate aqueous solution on the whole tree every four or five days until the buds grow two pairs of leaves. After the third pair of leaves grow, there will be obvious flower bud differentiation in the treetops, and jasmine will gradually enter the second flowering period, that is, this time, jasmine will enter the real flowering period. After the second flowering period, cut it from the top of the second pair of leaves one centimeter before flowering. If the plant type is too high and too big, you can leave at most three pairs of leaves from the top to each branch according to the whole plant type, and cut off all the leaves above. Don't worry too much about pruning. Jasmine is a green plant that likes pruning. The more you cut, the more you grow and the more branches you open.
Third, pruning in autumn
If the jasmine is planted correctly, there can be four or five big flowering periods every year. When the fourth petal blooms, it will probably be around August and September. At this time, although it is autumn, the temperature is mostly above 30 degrees, which is conducive to the flowering of jasmine buds. After the fourth post-flowering pruning, the time has entered the early autumn, and the actual effect of re-flowering is not as good as before. In order to better store enough kinetic energy for the main stem for the winter, the whole tree can shrink once, and it is not recommended to let it bloom again.
Fourth, winter dormancy pruning
In winter, jasmine will go to sleep because of low temperature. In order to better reduce the outflow of nutrients from branches, it is suggested to cut off the long branches and the lower branches at the same time. Only the strong branches are preserved, and each branch has a large number of leaves for plant photosynthesis. At the same time, move the jasmine to a warm room to avoid a large number of dead leaves in a low temperature climate.