Cutting propagation: select vigorous biennial branches and cut them into cuttings with the length of 10 ~ 12 cm, leaving four leaves at the top, and the cutting depth is 7 ~ 8 cm. Shade after cutting, water the leaves frequently, keep them moist and warm, and then take root and become seedlings.
Sowing and propagation: after cleaning the seeds, remove the pulp, sow in autumn or wash the pulp, dry in the shade, mix with wet sand, and sow in the next spring. Drill, with a spacing of 25cm and a depth of 7cm. After sowing, gently cover the soil or dig holes with a distance of 20 cm, and sow 3-5 seeds in each hole. After sowing, keep the soil moist and seedlings will emerge in about two weeks. It needs 20 kilograms of seeds per mu, and it is generally cultivated for 2-3 years. When the seedlings grow to 30 cm high, they can be transplanted.
When planting, it should be filled and watered at the same time. Pay attention to cut off dead branches and weak branches, keep the plant shape neat and grow vigorously. Seedling growth is slow and needs shading management.