1. Take refuge to eliminate disasters. People believe that the ninth day of the ninth month of the lunar calendar is an unlucky day, and it contains misfortune and disaster. Cornus officinalis is called "the evil-doer" and has a very auspicious meaning. Therefore, during the Double Ninth Festival, people like to wear dogwood to ward off evil and seek good luck. . During the Double Ninth Festival, people pick the branches of Dogwood and sew the fruits together with cloth into sachets, which they carry with them to ward off evil spirits.

2. Missing relatives. The ancients liked to go out with friends to climb mountains and enjoy dogwood on the Double Ninth Festival. The Double Ninth Festival has the meaning of missing relatives, so planting dogwood on the Double Ninth Festival also means missing relatives. Especially in the Tang Dynasty, dozens of poets such as Bai Juyi, Du Fu, and Han Shan all wrote poems about climbing mountains during the Double Ninth Festival and planting dogwood to express their longing. For example: Wang Wei's "Remembering the Brothers in Shandong on September 9th", the poem says: "I know from afar that my brothers are climbing high, and there is one less person planted with dogwood trees."