Calamagrostis brachytricha (Korean feather reed grass): Arching, plump spikes of silvery purplish flowerheads turning golden brown in winter. Up to 1m.

Panicum virgatum 'Heavy Metal' (Switch grass 'Heavy Metal'): Deciduous clump-forming grass with strappy blue-green leaves which turn a to purple/red, with clouds of airy flowers flushed purple. Hardy. Up to 1.5m