Rape flowers usually bloom in March-April, that is, in spring. Different regions will directly affect the flowering period. Rape flowers in Yunnan or Guangxi usually bloom in February-March, Hanzhong or Jiangnan in the Yangtze River valley enter its full bloom in April, and rape flowers in Qinghai bloom around July in summer.

Rape flower, also known as Yuntai, originated in Europe and Central Asia, and belongs to the genus Panicum in Cruciferae. In China, it is concentrated in Huangling in Wuyuan, Jiangxi, 10,000 mu terraces in Hanzhong Basin and Jiangling, Luoping Plain in Yunnan and Menyuan Plateau in Qinghai. Rape flower is a common flower in life. When it blooms, it seems to cover the earth with a layer of yellow clothes, but many people don't know when it blooms. In fact, it mainly blooms in March-April in spring, with yellow color and neat and exquisite flowers.