Introduction to Tongling Fengdan: Tongling Fengdan is one of the "Tongling Eight Treasures" and was famous throughout the world as early as the Qianlong period. Blooms every April, single-petaled, white or pink. People of the same age cultivate Fengdan mainly to obtain the root bark of peony, which is the world-famous precious Chinese herbal medicine - peony bark. Now Phoenix Mountain has become one of the main production bases of tanpi and is exported to Southeast Asia and surrounding areas.