The seedlings grow slowly in the initial stage. After the cotyledons are unfolded, they are transplanted once. When there are 5 ~ 6 true leaves, put them in a pot and spend the winter in a cold bed or room. When planting, the fibrous roots are less damaged and the soil is slightly taken away. The suitable diameter of potted plants is 18 ~ 20cm, and the pot soil is a mixture of fertile garden soil, humus soil and river sand.

2. Fertilizer and water management

Keep the soil slightly wet during the growing period. If it is too wet, the leaves at the base will rot easily. Don't spray water on flowers and leaves when watering, so as not to rot. Pay attention to drainage in rainy season to prevent waterlogging from rotting roots. Apply 1 times quick-acting liquid fertilizer every 2 weeks, and add L times phosphorus and potassium fertilizer when bolting. When applying fertilizer, we should pay attention to the fact that the fertilizer solution does not pollute the leaves.

3. Plant shape trimming

If the flower stems are very high, they need to be supported to prevent the flowers from lodging or falling.

4. Pest control

Fusarium wilt, mosaic disease and aphids often occur. When major diseases occur, the diseased plants should be removed in time, disinfected with lime and sprayed with fungicides for prevention and control.