What is the gentlest flower in legend?

Xiaohua, also known as Hua Xian, is a fairy who was demoted to earth. Most of them are smart and beautiful, and they have been ill since childhood. After looking for a fortune teller, they will say that this girl is "Hua Xian". It sounds elegant, but it's not a good thing, because all flower fairies can't get married, and once they get married, they will die. Accurately speaking, Xiaohua is a "young man".