RHS Herbaceous Perennial
A strong-growing, clump-forming evergreen plant, up to 90cm tall, with narrow, dark-green, grass-like leaves. In early summer, white, bowl-shaped flowers, 2-3cm across, are carried on erect stems and are followed by round seed pods in autumn which turn black when they mature
Position
Full sun
Soil Types
Clay, Loam
Max Height
0.5-1 metres
Max Spread
0.5-1 metres