Grain Rain is the best solar term to appreciate what flowers.

Grain Rain is an important period for peony to bloom, so peony flower is also called "Grain Rain flower". "Three generations of Grain Rain visited peony", and peony appreciation became an important recreational activity in people's leisure time. Today, there are more peony flowers in Heze, Shandong, Luoyang, Henan and Pengzhou, Sichuan than in Grain Rain, for people to play and get together.