① Seeding and breeding. In autumn, after the seeds are mature, dry it, and then store it in a cool and dry place. From March to April, the seeds were sprinkled into a basin equipped with L. After sowing, cover the extremely thin soil, soak the water and cover the glass, and place it in the semi -shade of the room, and often keep the pot soil moist. 20-30 days have germinated one after another, and transplanted into the basin when the seedlings are about 5 cm high.
② cutting propagation. In the summer growing season, cut the strong top and leaves, leave the stems for 3 ~ 4 cm long, and cut the umbrella leaves to 2 ~ 3 cm, then insert the cuttings into the fine sand, the bracts are close to the sand, pour the bracts, and pour the bracts, pour the bracts, and pour the bracts. Foot water, put in a cool place. Cover the curtains on the sand bed, spray the water 1 or 2 times a day, keep the pot soil moist, the temperature is 20 ° C ~ 25 ° C, and the roots of long new leaves start after 20 days. As high as 5 ~ 6 cm, it can be put on the pot when there is branches.
③ Breeding in division. It is carried out in combination with the basin of the basin from March to April. Before the division, water must be poured to make the plants be separated from the basin to avoid rooting. Depending on the strength of the strength, change the pot once in 1 to 2 years. After the growing clustering mother plants are scooped out of the pot, they are divided into numbers and put them in the pot. If the stems and leaves of the umbrella are yellow, the old stem should be cut off to make it reunite.