Sow in a propagator on a windowsill or in a greenhouse at approximately 15-20ºC (60-68ºF) using a good quality, moist seed compost. Cover the seeds with 6mm (¼") sieved compost. (Germination 5-14 days). Transplant seedlings spaced out 5cm (2") apart in trays and grow on in good light. Acclimatise plants gradually before planting out about 40cm (16") apart in open, sunny position. Alternatively sow direct outside April/May into finely raked, moist, warm, weed-free soil.
Ideal for beds and borders, patio pots and containers, greenhouse. Suitable for cut flowers. Prefers full sun. Remove dead flowers to promote more blooms.