the Double Ninth Festival
Chongyang, or Double Ninth Festival, is celebrated on the 9th day of the ninth month on the lunar Chinese calendar, which falls on October 14 this year.
When it comes to the Double Ninth Festival, chrysanthemum has to be mentioned. Ancient Chinese poets and scholars have left many odes to the festival and everything related to it, including chrysanthemum.
This passage is from CHINADAILY, CGTN and Wai Yan Shu Tong.