The requirements for soil are not high, and it can grow in thick and slightly alkaline soil. It grows best in sandy loam rich in humus. Generally, fertilizer is applied twice, nitrogen, phosphorus and potassium fertilizer 1 ~ 2 times a month before flowering, and basal fertilizer is applied once after defoliation.

(2) moisture. Like humidity and drought resistance. The principle of watering is "see dry and see wet", that is, water the basin soil after it is dry and pour it thoroughly. From germination to flowering, it is advisable to water more, and it is advisable to wet the basin soil without waterlogging.

(3) illumination and temperature. It is a positive flower, which likes warmth, cold tolerance and semi-shade tolerance. North China and its south can safely overwinter outdoors. Shade properly in summer to avoid sun exposure.

(4) plastic trimming. Including plastic surgery during hibernation and cutting residual flowers. Cut off the old branches that have been dormant or more than 4 years from the base, no more than 8 branches, and cut off the rest; Leave 2 ~ 3 buds at the base of the main branch. After flowering, the residual flowers are removed, and at the same time, the dead branches, weak branches, pests and diseases are thinned, and the old and dense branches are cut off to promote the germination of new branches and constantly update the old plants, so that the flowers flourish year after year.

(5) reproduction. It was easy to survive when cuttings were used in those years. Rare varieties are not easy to cut, and can be propagated by layering or grafting. Asexual seedlings can bloom in the same year. For the seedlings used as potted flowers, the older branches of fine varieties should be selected, and the seedlings should be raised by layering method, and the main buds should be trimmed and artificially dwarfed. Seedlings used as cut flowers should choose varieties that can form mother branches and have large and colorful flowers.

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