Zhang Heng of the Eastern Han Dynasty wrote in Du Nan Fu: "If its garden ... has cherry blossoms, plums, peaches, pears and chestnuts. If the jujube stays, it will be orange. " According to "History of Flowers", pomegranate named "Shi" was planted in Jinguyuan, Shichong, Luoyang in the Western Jin Dynasty (Shi Chong was a famous minister at that time). In the Northern and Southern Dynasties, Wu Yun's Miscellaneous Notes on Xijing also described that when Chang 'an built a forest garden, hundreds of officials from all over the country presented exotic flowers and fruits, including Ann pomegranate and Gan pomegranate. Yuan Zhen, a poet in the Tang Dynasty, said, "During the Anshi Rebellion, Wan Li paid tribute to Liu Hua. Handing over Heyuan depends entirely on the Chinese ambassador. " The book Qi Yaomin written by Jia Sixie in the Northern Wei Dynasty recorded the propagation, cultivation and grafting of pomegranate, and summarized rich management experience, indicating that pomegranate production as a fruit tree was quite common at that time, and the cultivation technology reached a certain level.