Oshima Sakura is a deciduous tree belonging to the Rosaceae family and the Sakura genus. Leaves are often ovate in shape, with pointed tips and heavily serrated edges. The petiole has glands at the tip, and the bracts are linear with small glandular teeth at the edges; Flowers and leaves are in the same period, inflorescence is umbrella shaped, with large green shield shaped bracts at the base, white single petal flowers, and concave tips; Drupe black spherical; The flowering period is in late March. Oshima Sakura is native to the Izu Peninsula in Japan and is distributed in eastern and northern China. Sexual preference for sunlight, suitable for a wide range of planting, able to withstand low temperature environments of -15 ℃. The propagation method is grafting, and in some cases, it is propagated by pressing strips or cutting, but the survival rate is low. Grafting is mainly done by bud grafting and branch grafting.