Clumps of grey-green trifoliate leaves topped with tall spikes of pea-like, indigo-blue blooms which develop into attractive dark grey seed pods. RHS Award of Garden Merit winner. Flowers June-July. Height 1.5m (5'); spread 1m (3'3"). Supplied in a 9cm pot. Back of border variety.
Adrian Bloom says ... Cut back foliage in winter, and remember that new growth appears only in late spring.