It has hard seeds, which should be treated before planting. After selecting full seeds, put them into concentrated sulfuric acid and soak them for about 5-30 minutes, then rinse them with water. Prepare a clean substrate, sterilize it before planting, sow the seeds, keep the germination temperature at about 25-35 degrees, and wait for 3-5 days before germination.

Two, grafting method

This kind of breeding is best carried out in the spring, and if there is a greenhouse, it can be carried out all year round. Prepare the scion and rootstock in advance, you can use the butt, chop, cut method. The scion and rootstock should be the same width, the lower end should be cut into a wedge shape, the top should be cut off with a knife, split from the center position, and then inserted into the wedge-shaped plug. Finally, tie it with a plastic bag and put it in a cool place in the room.

Three, cuttings method

The use of cuttings to propagate, it is best to do around May-June. If you want to do it in winter, choose to do it in the greenhouse. Cut 10-12cm branches from the mother plant in good growing condition, remove all the leaves at the bottom and keep only 1-2 leaves at the top. Prepare clean plug soil in advance, insert the treated branches, spray a little water every day and wait for the roots to take root.