The simplest propagation methods include cuttage and ramets, both offering a high survival rate.
In the case of ramets, when newly sprouted ramets in the lower part of the stock plant grow up to 30 cm, they should be divided. Make sure that you include proper roots during division, so as to ensure that the ramets can survive. The cover soil should not be too deep when transplanting - you only need to cover the top. Water immediately after burying. Alternatively, the entire plant can be excavated and then divided with a sharp knife into several ramets.
In the case of cuttage, the method of burying the stem for rooting can be adopted. Cut off the old perennial stem first and peel off the leaves. Cut the stem into 5 to 6 cm long segments, and insert them straight into the soil, keeping the tops slightly exposed. Place in a sunny location and keep the soil moist.
In high temperatures, cuttings will take roots after about two weeks, sprouting tender stems. They can be transplanted after growing out complete roots. The stem can also be directly inserted into water, with the water regularly replaced to keep it clean. After rooting, the seedling should be planted into a flowerpot in a timely manner.