A stiff, upright, open, clump-forming perennial which has rough branching stems which bear oblong-lance-shaped, wrinkled, dark green leaves which have toothed margins. From early summer to early autumn, scented, small purplish-blue flowers are borne.
Grow in moist but well-drained, moderately fertile soil in full sun. It will reach a height of up to 2m and a spread of 45cm.
1 x Plant in 9cm Container
1 x Plant in 2 Litre Container