Herbaceous Perennial
A clump-forming, erect perennial to 1m tall with greyish-green, ovate to lance-shaped basal leaves and lance-shaped stem leaves up to 6cm long with rounded teeth. Small, star-shaped, violet-blue flowers with narrow petals are borne in spike-like panicles from midsummer into early autumn
Position
Full sun
Soil Types
Chalk, Clay, Loam, Sand
Max Height
0.5-1 metres
Max Spread
0.1-0.5 metres