Hydrangea, also known as Baxianhua and Ziyanghua, is a famous ornamental plant in summer in China. Besides its high ornamental value, Hydrangea has high ecological value and medicinal value. In this paper, the main characteristics,ornamental lines and cultural connotation of Hydrangea are analyzed. Based on the existing landscape cases at home and abroad,the main points of plant landscape construction of Hydrangea theme in China are discussed.And the applic...