The town of Zhangpu started growing Baoguo grapes in 2000, the total planting area is about 1506 mu (2.258 hectares), and the grape yield per acre is about 1500 - 1750 kg. The town now boasts several varieties of grapes, which all bear the Baoguo trademark, which was named one of the well-known trademarks of Suzhou City, and was certified as a Suzhou City Famous Brand Name. Two of the grape varieties received the national green food certification (LB-18-0611103125 Manicure Finger, LB-18-0611103126A Red Globe) in 2006, with one of them winning top awards for the quality of green fruit at an exhibition in Suzhou for two years in a row.