Sow in a propagator on a windowsill or in pots or trays in a greenhouse at approximately 15-20ºC (60-68ºF) onto good quality, finely sieved, moist compost. Do not exclude light or allow to dry out (germination 10-21 days). Transplant seedlings when large enough to handle, spacing them out in trays 5cm (2") apart and grow on. Acclimatise gradually before planting out 30cm (12") apart in a sunny position after the danger of frost has passed.
Ideal for beds and borders, patio pots and containers, hanging baskets, greenhouse. Attractive to bees. Prefers full sun or partial shade.