Acanthus mollis (Bear's Breeches):
Architectural spires of purple/white flowers over large, dark green deeply divided leaves. Best in sun or light shade. Height to 1.2m.
Salvia 'Hot Lips' (Sage 'Hot Lips'):
Bicolour flowers in white and lipstick red and delicious scented foliage. Half-hardy, copes with -5C in a sheltered spot. To 1m.