What is this purple flower?

Perennial herb, usually cultivated as 1-2 years. It is divided into high-growth species and low-growth species, ranging from 20 to 90 cm. The whole plant is slightly hairy, and the leaves are as big as melon leaves, green and bright. Flowers are terminal, and most of the flower heads gather into corymbose inflorescences. Inflorescences are densely covered at the top of branches, often in the shape of pot bottom, with rich colors, including red, white and compound colors besides yellow. Flowering1-April. The flower language of Guayeju is: joy, happiness, happiness, family joy and prosperity. Suitable for giving to relatives and friends during the Chinese New Year. This flower is brightly colored, reflecting good intentions.