RHS / Joanna Kossak An upright, clump-forming perennial to around 85cm tall with semi-evergreen, strap-shaped foliage. Large flowers to 15cm across are borne in summer on branching stems and comprise deep purple, frilly-edged petals surrounding a yellowish-green throat
Position
Soil Types
Max Height
0.5-1 metres
Max Spread
0.1-0.5 metres