Generally, cuttage is used, which has a high survival rate and is also the most common method. The best time is in the middle and last ten days of May. Select the plants with better growth, and cut the thick branches from the top. The length is about 20-30cm. After cutting off, white juice will flow out. Put it in a cool place to dry. Then choose clean sand or vermiculite as cutting medium, insert it, spray water every other day, ensure the soil is moist, about a month or so can take root, and then can be cultivated in pot.
The long branches growing well under it will be buried in a small pit beside it to ensure the supply of water and nutrients. After a period of time, they will grow roots, and then they can be cut off from the original mother plant and maintained separately.
This method is also commonly used. Proper rootstock and scion are the most basic ones, and then oblique cuts are cut on the rootstock. The two oblique cuts are roughly the same. Put the scion in and fix it, use plastic bag to tie it in, and then wait for rooting
Buy seeds and plant them in the soil to keep them moist, which is good for growing seedlings, but this method is slow and not often used.