RHS / Joanna Kossak Herbaceous Perennial
A tall, rhizomatous perennial, with rosettes of green, pinnate leaves and tall, slender flowering stems to 2m high, bearing dark reddish-purple, curving, bottlebrush-like flowers from summer to early autumn
Position
Full sun
Soil Types
Chalk, Clay, Loam, Sand
Max Height
1.5-2.5 metres
Max Spread
0.5-1 metres