Description Calamagrostis x acutiflora ‘Overdam’ A dense, clump-forming grass with an upright habit which has fine dark green leaves which have yellow margins, which fade to cream. In early summer, sturdy stems form which hold the graceful arching pinkish flowerheads. Grow in fertile, moist soil in full sun or partial shade. It will reach a height of 1.2m and a spread of 60cm.
