A small perennial plant with upright stems which are slightly woody at the base and which carry fresh green,oval leaves. Spires of purple indigo blue flowers appear throughout the year. This plant produces stunning flowers held above the foliage. Thrives in moist, well drained soil in full sun to part shade. Ideal for perennial borders, cottage gardens and pots. Prune after flowering to maintain compact growth. Grows to 50cm.