Herbaceous Perennial
A deciduous perennial, to 75cm high, with narrowly-lance-shaped leaves. In summer, large, violet-blue, double flowers are held on the upper parts of upright stems arising from a basal rosette of foliage
Position
Full sun, Partial shade
Soil Types
Chalk, Clay, Loam, Sand
Max Height
0.1-0.5 metres
Max Spread
0.1-0.5 metres