In early spring, the ground temperature 1 ~ 2℃ can germinate, the optimum temperature for seed germination is 1 ~ 25℃, and the optimum temperature for leaf growth is 20 ~ 22℃. Drought resistance, alkali resistance, humidity resistance and shade resistance. It can grow in various types of soil, but it is most suitable for planting in fertile, moist, loose soil with high organic matter content. Dandelion is a short-day plant, which is beneficial to bolting and flowering under high temperature and short-day conditions. Shade tolerance, but good lighting conditions, is conducive to the growth of stems and leaves. Generally, it takes 6 ~ 10 days from sowing to emergence, 20 ~ 25 days from emergence to fruiting and about 60 days from fruiting to flowering. When the conditions are good, it can bloom many times, and it takes 5 ~ 6 days from flowering to fruiting, and 10 ~ 15 days from fruiting to seed maturity. Most of them blossom and bear fruit from March to May, and the seeds mature from April to May. The average fruit per plant is about 800, and the natural germination rate is 10% ~ 20%. Seeds germinate after 1 week dormancy, and grow 5 ~ 7 leaves in the same year, and germinate, bolt, blossom and bear fruit after overwintering.