Huzhou County has planted a Chinese herbal medicine with a history of more than a thousand years. The "Gangguan Codonopsis" geographical trademark history will be registered successfully in three years. A geographical mark is primarily used to prove the origin, raw materials, manufacturing method, quality or other specific quality of the product. "Huuanguan Codonopsis" is produced in the Taihang Mountain Grand Canyon of Huguan. According to records, the planting history of the Codonopsis in Huguan County can be traced back to the Han and Tang Dynasties. It has a history of thousands of years, especially the Zidangshan Codonopsis in the Taihang Mountain Grand Canyon. The best of the best, has always been the royal tribute of the royal family, the Song Dynasty big lyricist Su Shi, had some poems "Zi Dian sang sent Wang Dingguo" to the purple group ginseng.