Herbaceous Perennial
A compact, upright deciduous perennial with aromatic green leaves, serrated at the edges, and clusters of blue-purple flowers which appear in the spring and can flower through until September if cut back to promote a second flush of blooms
Position
Partial shade
Soil Types
Chalk, Loam, Sand
Max Height
0.5-1 metres
Max Spread
0.1-0.5 metres