2. Selection of seedlings: It is best to choose robust biennial branches, cut them into 10 ~ 20cm long branchlets, and peel them into a circle below. This treatment can promote the division of lower cells and improve the rooting effect.
3. Soak the cut shoots in the solution diluted by 1000 times of rooting powder for 6 hours, and then soak them below, so that the whole plant does not need to be immersed in it.
4. Take out the shoots, dry them slightly, and then cut them on the seedbed. Spray rooting powder every 7 ~ 1000 times/time, and pay attention to drainage to avoid soil hardening.