Melica altissima 'Atropurpurea':
Deciduous grass with green strappy leaves and large feathery purple flowers. Good for drying and as a cut flower. Hardy. Up to 80cm.
Miscanthus sinensis 'Yakushima Dwarf':
Compact form with clumps of narrow arching leaves and stems of plume-like flowers. Starting a rich red colour, fading to pink/grey. Hardy. Up to 80cm.