(1) Soil utilization and fertilization. The requirements for soil are not strict, and it can tolerate mild salinity. Potting needs rich humus and loose and fertile sandy loam. Appropriate amount of organic fertilizer can be applied during the vigorous growth period. Nitrogen fertilizer is mainly applied before emergence, and then phosphorus and potassium fertilizer are applied after emergence and bud expansion, and nitrogen fertilizer is applied lightly. During the growth period of young trees, topdressing is needed when the base fertilizer is insufficient. Potted pittosporum needs to be turned over once a year in spring and a bigger flowerpot every year.

(2) moisture. Drought and waterlogging tolerance. Pot soil should not be too wet, and it should be kept wet during the vigorous growth period. During the growth period of new shoots, the water demand is large, the soil moisture should be sufficient, and water should be sprinkled frequently around the flowerpot to keep the environment moist, so that the flowers will become more and more fragrant.

(3) illumination and temperature. It should grow in a warm and humid environment, and also has a certain degree of cold tolerance. South China can spend the winter in the open air, while North China and North China need indoor activities in late autumn. Like sunshine, not afraid of direct sunlight, but also able to withstand semi-cloudy to full cloudy environment; It requires high temperature and normal growth above 15℃. The minimum wintering temperature should be higher than 5℃.

(4) pruning and shaping. Moderate pruning can make it grow into a spherical crown, neat and plump. Pick the heart in time in summer to prevent it from growing in vain. Pruning at the young tree stage is mainly to promote branching and increase the light area. Adult plants should strengthen the ventilation of the tree body and cut off the over-dense branches and over-flourishing branches.

(5) reproduction. Sow and breed. When the capsule changes from green to yellow and just cracks, it is harvested. After the seeds are completely dried in the shade, they are stored until the next March for sowing. The seedlings grow fast, and they can grow into plants and bloom 2 years after planting.

(6) pest control. Pay attention to ventilation and light transmission to prevent scale insects from breeding.

Pittosporum tobira