Chasmanthium latifolium (Spangle grass):
Deciduous perennial grass, with arching stems of flattened spikes. Bronze tints in Autumn. Moist, well-drained soil. Hardy. Up to 1m.
Deschampsia flexuosa:
Attractive architecturally shaped dark green foliage contrasts well with other plants. Pretty airy silvery purple flowerheads. To 50cm.
Sesleria autumnalis (Autumn moor grass):
Evergreen grass with strappy bright green leaves, turning more yellow in autumn with silvery white flowers in summer. Hardy. Up to 60cm.