Fatsia japonica likes a cold and cool growth environment, the temperature is suitable between 10-25 ℃, generally 18-20 ℃ in the daytime, and 10-12 ℃ at night. It should be noted that the long-term high temperature is easy to make its blades thinner and larger, and start to droop. Fatsia japonica is more cold resistant, the temperature above 7 ℃ can safely survive the winter.
Fatsia japonica is a semi negative plant, strong negative tolerance, but avoid strong light. Suitable for greenhouse cultivation, except in winter, the general shading should be more than 60%, especially in summer, pay attention to the strong direct light, strengthen the shading work. On the other hand, if the light is insufficient for a long time, the leaves will become small. More sunshine in winter
In the growth period of Fatsia japonica, from April to October, thin liquid fertilizer was applied every two weeks, and fertilization was stopped after October. Water should be watered during the hot season to keep the soil moist and spray water to and around the leaves to improve the air humidity nearby. After October, we will gradually reduce watering and control watering.
It is suitable to choose fertile and loose soil with good drainage. Potted pot soil can be mixed with 3 parts of garden soil and 1 part of rice husk ash, and then a little basic fertilizer.
In the breeding process, the basin should be changed every 1-2 years, generally in March and April. When turning over the soil to change the basin, put the base fertilizer on the bottom.
Fatsia japonica has diseases such as bituminous coal disease, leaf spot disease and etiolation disease. Leaf spot disease mostly occurs in summer, which can be controlled by methyltobuzin or carbendazim. Chlorosis can be prevented by foliar spraying with ferrous sulfate.
Insect pests mainly include aphids, scale insects and red spiders, generally can be used to control scale insects, for aphids, can be used to control the shovel aphids, with triclosan to control red spiders.
