1, choose the annual lignified black adamantium's middle branch as the scion, the scion to retain three buds shall prevail, cut off the lower one leaf, the upper two leaves together, and tied with plastic, or cut off the upper leaf half leaf, in order to reduce the evaporation of water;

2, in order to prevent the cuttings of the loss of too much latex to affect the survival of the cuttings, you should promptly use the grass ash to smear the wounds;

3, The treated spike cuttings will be inserted into the bed of river sand or vermiculite as the substrate;

4, after insertion, keep the bed of insertion with high humidity, and often sprinkle water to the ground to improve air humidity.