1. Propagation by sowing.

This method is mostly used to cultivate new varieties, plant the seeds collected in the fall in a bag filled with moist sandy soil, and then put the bag in an environment with a big difference in temperature between day and night, and then transfer it to a place of about 20 ℃ after 1 month, and the seeds can be sown when they germinate.

2, split-plant propagation.

Plant the plant deeper or cultivate the soil at the root, so that each branch grows new roots in addition. Then you can change the pot, you can cut the side branches that grow new roots and separate them into new plants.

3, cuttings propagation.

(1) Semi-woody branch cuttings: this method is from June to September, select the branch whose flowers have just faded, cut off the stalks of the long flowers, cut the lower part of the branch flat, 2-3 sections as a small section, remove the following piece of leaf, and then remove the withered, old leaves, use growth stimulating hormone treatment for cuttings.

(2) hard branch cuttings: the use of a year's full of branches prepared before the wintering, the same 2-3 sections of a small section, 10 branches as a group, bundled together, in the low temperature of the house to dig a 30cm pit, the branches buried upside down in the soil, covered with soil on the top, while keeping the soil humidity, the next spring when the cuttings can be taken.

4, grafting propagation.

(1) bud grafting method: every 5 days to 9 days, from the healthy original plant on the choice of good young buds cut with a knife, will be connected to the albizia begonia or rose rootstock. After the bud catching live, the branch with live buds will be cut in sections, a section of a live bud, and then in the use of cuttings will be cuttings.

(2) branching method: in the spring time can be used to cut, ventral jointing method will be connected to the branch of other plants.