Hardwood cutting is carried out in spring and autumn, and the row spacing of cutting plants is kept at 10 cm× 30 cm. In spring, when the buds are about to sprout, the cuttings are picked and inserted during picking. Autumn is from August to June, 10, the cutting length is about 10 cm, a pair of leaves are left on the top, and the rest are cut off. Shade after planting, remove the shade to build a plastic shed after the temperature drops gradually, and remove the plastic shed in April of the following year. In summer, current year branches or 2-year-old branches can be used as cuttings, and the length of cuttings is about 10 cm. ?
In spring, silk cotton can be used as rootstock for the propagation of horticultural varieties. Branches that are 2 years old or more should be selected for layering, and can be separated from the mother plant after 1 year.