What are the propagation methods for Polygala fallax bonsai?

Polygala fallax is a commonly used folk medicinal herb, and its medicinal part is the root, which has the effects of strengthening the tendons, tonifying qi, and unblocking the meridians, and its market demand is increasing year by year. At present, because wild Polygala fallax is continuously being dug up and harvested, in recent years some medicinal farmers have begun planting it in fields. So