Panicum Virgatum (Twitch grass)
hardy perennial
clump-forming sedge
purple-green flower spikelets in autumn
steely-blue foliage turning soft yellow in winter
height 90 cm (36 ins)
sun or shade
can be planted as a marginal
Pontentilla nepalensis ' Roxana '
hardy perennial
coppery-pink flowers with a cherry-red eye
flowers July onwards
height 38 cm (16 ins)
full sun
any well-drained soil
long-lived border plant
Pontentilla thurberi ' Monarch's Velvet '
hardy perennial
raspberry-red flowers June onwards
height 60 cm (24 ins)
full sun
any well-drained soil
long-lived border plant
