Every spring, in addition to removing litter when changing pots, large-scale potted Saussurea involucrata also needs to cut off plants that are too dense in the middle and poor in the periphery according to the plant growth, so as to maintain a beautiful potted posture, and at the same time, it is conducive to ventilation and light transmission and the germination of new plants. If wintering plants are found to be damaged by freezing in the north, they should be gradually cut off before the new plants germinate in spring, which is beneficial to the recovery of frozen plants and the germination of new branches.