Variegated Sweet Flag (Acorus calamus 'Variegatus') Ornamental green and cream striped grass which grows 4-5’ tall. Plant in wide, shallow containers (5 gallon) in full sun to light shade. Long, glossy, sword-like leaves add textural interest to any area of your garden or water feature. They are soft leaved and sway beautifully in the breeze. Hardy in zones 4-11.