Corydalis is a positive plant, resistant to high temperature and humidity. The growth of Corydalis needs sufficient sunshine and does not fear the hot summer sun. In South China and tropical areas, it can be sown all year round, but it is most suitable in spring. The temperature of seed germination is 22 ℃ ~ 24 ℃. After sowing, the seeds are not covered with soil (glass can be covered for pot sowing), and germinate for one or two weeks. Corydalis is warm and the suitable temperature for growth is 18 ℃ ~ 21 ℃. It takes about 12 to 13 weeks from sowing to flowering. Pay attention to moisturizing when sowing
The seed of Corydalis is very small, so it can be mixed with some fine sand seeds. After sowing, it can not be covered with soil, but it needs to be covered with film to keep moisture, so it needs to be watered by soaking. It can germinate in about 10 days, take off the film after emergence, and put it in a place with sufficient light and good ventilation for cultivation. When the seedling is 10 cm, it can be transplanted. In order to keep the color of Corydalis brilliant, we need to apply some organic fertilizer as the base fertilizer before cultivation, and apply 2-3 times of chemical fertilizer or organic fertilizer in the growth period to keep the soil fertility.
