Day lily, also known as day lily, is called forgetting worry in ancient times. Hunan, Zhejiang, Sichuan, Hubei, Jiangsu, Gansu, Shaanxi and other provinces are the main producing areas. Its taste is delicious, and it is suitable for both meat and vegetables and soup. It also has the pharmacological effects of promoting digestion and promoting dampness and heat. The quality of daylily in Qingyang, Pingliang and Longdong of Gansu ranks first in the country.

Daylily is the most famous traditional local product in Qingyang. Every summer, the day lilies in the ridges and fields around Qingyang farmhouse enter the mature season, and there are day lilies everywhere in Huang Cancan. It has been cultivated in Qingyang for more than 2000 years. Since ancient times, farmers have no treasures, and yellow flowers everywhere are the hymns of gold needles. Dried vegetables made of Qingyang day lily are long and fresh in color, thick and mellow in meat, rich in nutrition and among the best in the country in quality. According to the determination, in1000g of dried vegetables, the iris planted in Qingyang contains protein 10.99%, sugar 46.35% and fat 1. 1%. It contains calcium153.07mg, phosphorus 84mg, iron 70.2mg, A1.624mg of vitamin A, C 0.339mg of vitamin C, B10.666mg of vitamin B. Daylily in Qingyang has been exported to Europe, America, Japan, Singapore, Malaysia and Japan for many years because of its excellent quality. 1984 was awarded the title of Northwest Super Day Lily by the Ministry of Foreign Trade, and was awarded the certificate of export honor. Qingyang Day Lily is mainly produced in Qingyang, Xifeng, Zhenyuan, Heshui and Huanxian counties (cities). At present, the sown area in the whole region has reached 1 10,000 hectares, the annual total output is 10.5 million tons, the sales price is about 65,000 yuan/ton, and the annual income can be about10 billion yuan.