Feiyan Cao is a perennial root herbaceous plant in Mao Yancao, which is often cultivated in one or two years.Its color is cool, ventilated, and full of drying environment. It can be carried out with divisions, cuttings or sowing. It is mostly in the spring and autumn seasons. The germination is appropriate for about 15 ° C, and the temperature is too high to inhibit the germination of the seeds.The height of the plant can reach 30 to 60 cm. The color is blue, red, pink white, etc. The inflorescence is large and the flowers are dense.Because of its straight root and not resistant to transplantation, it should be broadcast live.
