Shoka 生花 is a style formalized in the late Edo Period. By using from one to three kinds of floral materials shin 真, soe 行 and tai 體, likened to three poles or functions (heaven, earth and mankind). Shoka expresses the living form of plants rooted in the soil and growing upward. Composed by principle of in 陰 and yo 陽, we understand the plants in nature extend towards light coming from one direction. There are two styles: shoka shofutai 生花正風體 with traditional form, and Shoka Shimputai 生花新風體 with no set form.