Dense 5cm (2in) clusters of purple fragrant flowers and dark green leaves. Adds height and interest to bedding displays. Lift tubers in autumn. Height: 30-60cm (1-2ft).

Sow in trays, pots, etc of good seed compost in a propagator or warm place to maintain an optimum temperature of 70-75F (20-25C). Surface sow and just cover with vermiculite and exclude light. Sowing Time: February to March. After covering the seed with vermiculite give a very light spray using only half the water you would give to other seeds. Too much wet will result in poor germination.

Transplant seedlings when large enough to handle. Harden off and plant out when all risk of frost has passed 30cm (12in) apart, in full sun.

Prefers a rich, light, well drained soil.