Grass, River Oats, Inland Sea OatsInland Sea Oats is an upright grass with a clumping habit native to the rocky slopes and streams of the Eastern Coast. The bright green leaves sport distinguishing flat, drooping seedheads in terminal clusters that emerge green and mature to purple bronze in late summer while the foliage shifts to copper after frost and eventually browns. Prefers part sun and moist well drained soil. Type: Orn. Grass Origins: Eastern N. America; GA Native Height: 2 5