What festival is climbing dogwood? Which festival does climbing dogwood refer to?

1. Climbing with Cornus officinalis is the Double Ninth Festival.

2. It is a traditional folk festival in China, which falls on the ninth day of the ninth lunar month every year. The Double Ninth Festival originated from the worship of celestial phenomena and evolved from the harvest sacrifice in ancient autumn and season. The number of "Nine" is a positive number in the Book of Changes, and the two positive numbers of "Nine Nine" are heavy, so it is called "Chongyang"; It is also called "Double Ninth Festival", because both the date and the month conform to nine. Returning to the truth of 1999, the ancients thought that 1999 Chongyang was an auspicious day. "