The City of Peony is Heze City, Shandong Province, which was called Cao Zhou in ancient times. Located in the southwest of Shandong province, at the junction of Shandong, Jiangsu, Henan and Anhui provinces. Heze has a long history and profound cultural heritage, and has the largest peony garden in the world. Peony has been cultivated for more than 400 years, and it is the production, scientific research, export and ornamental base of peony with the largest planting area and the most varieties in the world. Every year, a large number of tourists come to enjoy peony flowers, which greatly promotes the development of tourism in Heze.