Abstract: In order to solve the problem of disposal of greening waste,this research took the four kinds of greenery wastes of Cinnamomumcamphora,Conifers,Turf-grass and Submerged plants in Shanghai Chenshan Botanical Garden as raw materials,soaked them,then extracted different types of lixivium,added the lixivium of different concentration into the water body of Spirogyra communis and common associated aquatic plants of Spirogyra communis（Nelumbo nucifera,Typha minima,Pontederia cordata）,and observed effects on the growth of them.The results showed that Cinnamomum camphora extracts had the highest toxicity,ρ(96 h,EC₅₀),was 6.512 mg·L^-1,which was highly toxic.The second was Turf-grass,ρ(96 h,EC₅₀)was 7.392 mg·L^-1,which was highly toxic.The third was Submerged macrophyte,ρ(96 h,EC₅₀)was 20.093 mg·L^-1,which was medium toxic.The toxicity of Conifers extracts was the least,ρ(96 h,EC₅₀)was 319.315 mg·L^-1,which was low toxicity.The four kinds of lixivium had no effect on the growth of Nelumbo nucifera and Typha minima,and the lixivium may even promote the growth of the Pontederia cordata.Therefore,in the water where aquatic plants were planted,for controlling the growth of Spirogyra communis,the lixivium concentrations of Cinnamomumcamphoraand Turf-grass should beseparately 6.5-24.0 mg·L^-1 and 7.3-24.0 mg·L^-1,which had no harmful effect on the growth of aquatic plants while inhibiting the growth of Spirogyra communis.As a result,these two kinds of lixivium have some certain potential value in controlling the growth of Spirogyra communis.