Black Madras Grass (Oryza sativa) An exceptional container specimen! Dramatic, dense, purple-black, grass-like foliage from spring until frost, when planted in full sun and consistently moist soil! Also great as a border plant as long as soil is moist. Beautiful when planted in a container and placed in the pond or in containers on porch or patio! Plant in full sun in moist soil. Grows 16" tall with an 8" spread. Exotic purple-black coloration!