Description
A stiff, compact, open clump-forming, herbaceous perennial with erect, branching stems bearing few oblong to lance-shaped, wrinkled, toothed, dark green leaves, hairy beneath, and branched clusters of small, salverform, purple flowers from midsummer to early autumn. Flowers from June to September. Height 50cm . Spread 50cm. Plant in full sun and well drained soil.