Introduction and growth characters of Silybum marianum, a medicinal plant, were observed in Tianjin.The growth rule and habit of Silybum marianum were preliminary revealed.

• 摘要通过对药用植物水飞蓟的引种及其生长表现观察，初步揭示了水飞蓟在天津栽培的生长发育规律和习性。