Grafting is commonly used in reproduction, and the rootstocks are mostly plum, peach, apricot, wild apricot and wild peach. Plum blossoms should be cultivated in the open space on sunny or semi-sunny slopes with a spacing of 3 ~ 5m. Usually in the growing period, that is, from autumn to early winter, fertilizer is applied three times, such as cake fertilizer compost, manure and so on. Apply quick-acting fertilizer before budding; After the new shoots stop growing (from the end of June to the beginning of July), appropriate water control and fertilization are applied to promote flower bud differentiation. Plum blossoms are suitable for bonsai cultivation. Put the plants that have been cultivated in the field for several years in a flowerpot. Pot soil should be soft, loose and fertile, and it should be trimmed before and after planting.

Propagation and cultivation of Chimonanthus praecox

The propagation of Chimonanthus praecox can be carried out by sowing, layering, grafting and rameting. Because it is difficult to maintain the original excellent characteristics of flowers, and the advantage of sowing lies in mass propagation, most Chimonanthus praecox only needs to cultivate a small number of plants, so it is generally not used. Grafting is widely used. There are two methods of grafting: cutting and docking, and cutting is the most commonly used.

The cutting time is around the middle of March, and it is best to do it when the leaf buds of Chimonanthus praecox just germinate to the size of rice grains. If you miss the opportunity, the leaf buds are too big or have sprouted, it is not easy to survive. Commonly used Chimonanthus praecox seedlings were used as rootstocks for cutting, and precious varieties such as Suxin or Chimonanthus praecox were used as scions. The scion should choose one-year-old stout long branches one month ago, and cut off its top to concentrate nutrients on the buds in the middle of the branches. The scion is about 7-8 cm long with 1-2 pairs of buds. When cutting the scion, don't cut it too deep, just slightly expose the xylem. The rootstock stake is cut from 5-6 cm above the ground, cut downward from 1/3 of the diameter of the rootstock, and split 4-5 cm. Insert the Chimonanthus praecox scion into the incision of the rootstock, align it with the stratum, tie it tightly with soft hemp skin, and then seal the rootstock and scion together with loose soil until the top of the scion is covered. After that, keep the soil moist. After a month, loosen the soil and check whether it survives. If it survives, wipe off other new buds on the rootstock to promote the growth of grafted buds. Then cover with loose soil to prevent the newly grafted buds from dying by the wind and sun. In another month, gradually remove the soil and let the new buds gradually accept the sun. Chimonanthus praecox propagated by this method grows vigorously and can grow to about 50 cm in that year.

Chimonanthus praecox is also propagated by ramets. If only a few plants need to be propagated, this method is suitable. Generally, ramet propagation is carried out in February-March when the leaf buds have not germinated in spring. When dividing plants, first dig out the soil near the root of the mother plant, and cut the daughter plant from the root with a sterilized sharp knife to form a new plant. Then plant, pay attention to shading after planting, keep the soil moist, and apply liquid fertilizer every half month after dog days to make the branches and leaves grow vigorously and bloom in 2-3 years. This method is simple, easy to propagate, high in survival rate, short in seedling raising time and fast in flowering.