(1) Hard branch cuttings. In the fall after the leaves fall sap stop flowing or spring before germination to collect spikes. Soak in water for 3 days, and then buried according to a layer of spikes a layer of sand, the temperature in 1 ~ 5 ℃ is most suitable. Cuttings are taken in spring when the average daily temperature is above 15℃, cut to a length of 10-15cm, with 2-3 buds on each spike. According to 30 ° ~ 45 ° tilt angle cuttings, tilted to the north, must be inserted in the soil 1 bud, the upper end of the bud eye exposed to the soil surface 3 ~ 5 cm. Take 10 to 15 cuttings per square meter of seedbed. With cuttings, with watering.
(2) shoot cuttings. June to August cuttings. Select the current year half lignified branches for the spike. Early in the morning to cut the spike, cut the length of 15 to 20 cm, retain 2 leaves, large leaves cut 1/2. Cutting to be smooth, not split, to be taken with the insertion. With 500 mg / kg naphthalene acetic acid solution to soak the base of the spike for 5 ~ 10 seconds, followed by cuttings. Straight cuttings, row spacing 20 cm, plant spacing 15 cm, cuttings depth 5 ~ 7 cm. Water thoroughly after insertion, shade 80% ~ 90%, temperature control below 30 ℃, in the case of 19 ~ 26 ℃, about 20 days after insertion rooting, rooting after the withdrawal of shade. After the cuttings are alive, each seedling retains 1 bud.