Why should Grain Rain measure the area of peony?

Determine the yield and quality of flowers. According to relevant public information, the purpose of measuring peony area in Grain Rain solar terms is to determine the yield and quality of flowers and predict the future harvest. Grain Rain is one of the 24 solar terms in China, which usually appears on April 5th or 6th of the Gregorian calendar. During this period, the weather gets warmer and the rain increases, which is conducive to the growth of everything. In ancient China, Grain Rain was a very important solar term, because it marked the beginning of planting crops in spring. Peony is a very popular flower, which has special significance in China culture.