Tianjin Cao Zhuang Flower Market. Caozhuangzi Flower Market is located 300 meters north of No.7 Bridge, Outer Ring West Road, Zhongbei Town, Xiqing District, Tianjin. Sell all kinds of precious flowers, such as tiger orchid and chrysanthemum orchid. Cao Zhuang Flower Market is located in the east of Cao Zhuang Village, Zhongbei Town, Xiqing District, Tianjin, and in the west of Yangliuqing, covering an area of 500 mu. It is the largest flower distribution center in Tianjin and even North China.