When cutting, choose loose, ventilated and well-drained sandy soil as the substrate. In the spring of hardwood cutting, the woody and robust branches are cut from the plants and cut into cuttings with the length of 15 -20 cm, leaving 2-3 leaves at the top. After cutting, keep the soil moist and put it in the shade, and it will soon take root. Autumn twig cutting is to select semi-lignified twigs and cut them into 15-20cm long cuttings with 3-4 knots and air roots. Shade after cutting, and always keep the soil moist. Generally, it can take root and survive in 20 -30 days after cutting. [3]
In addition to cutting, layering propagation can also be carried out. Bury the stems and vines in people, or press the stems and vines on wet soil with stones. After the new roots grow on the nodes, cut them off according to 3-5 nodes to promote the new stems and vines in the leaf axils. After another 30 days of culture, it can be transplanted into a pot.
It is widely distributed, ranging from southeastern Gansu, southwestern Shaanxi, Henan and Shandong in the north, Guangdong (except Hainan Island), Jiangxi and Fujian in the south, Bomi in Tibet in the west, and Jiangsu and Zhejiang in the east. It is also distributed in Vietnam.