If there is 1 plant in each Liriodendron pot, use a flowerpot with a diameter of 15 ~ 20cm; 3 plants per pot, and the diameter of the pot shall not be less than 25 cm. Cutting propagation seedlings should be completely shaded within 7 days after transplanting in high temperature season, 9- 15 days in sunny days and 20% in daytime 16-20 days, and then completely protected from light. Single plant cultivation: when the plant is about 20 cm high, remove the core and leave 3 branches after the branches grow out; Three plants in each pot are cultivated by totem poles, that is, 1 palm pole is erected in the center of the pot, and the plants are bound to the palm pole at any time. Water plants in time, spray water when the weather is dry, and control water properly when the temperature is low in winter. Apply 1 diluted liquid fertilizer every 1 ~ 2 weeks in growing season. Indoor cultivation can grow well if it can grow in bright sunshine for 3 ~ 4 hours every day, and it can be placed indoors for a long time. If the ventilation is poor or the light is too dim, the leaves will fall off. Liriodendron grows slowly, but it is easy to sprout long branches and needs pruning in time. When the old plant is too big for indoor cultivation, it can be pruned by changing pots in spring to remove most branches and some roots. Young plants change pots every spring, with adult plants 1 ~ 2 years 1 time.