Is boxwood a native plant of Suzhou

Yes. Boxwood is produced in Shaanxi, Gansu, Hubei, Sichuan, Guizhou, Guangxi, Guangdong, Jiangxi, Zhejiang, Anhui, Jiangsu, Shandong provinces and districts, some of which are cultivated. Boxwood is a shrub or small tree, 1 to 6 meters high; branches cylindrical, with longitudinal ribs, gray-white; branchlets 4-angled, pubescent or glabrous on both sides of the outer relative sides, internodes 0.5 to 2 cm long.