Sow direct into finely raked, moist, warm soil where the plants are to flower approximately 3mm (1⁄8") deep, raking the seed in gently. Germination 7-14 days. For early flowering, sow February/March on a windowsill or in a greenhouse at approximately 13-18°C (55-65°F), 1.5mm (1⁄16") deep in good quality compost. Transplant seedlings 5cm (2") apart and grow on. Plant out 15cm (6") apart in a sunny position end May. May also be sown in autumn for early flowering next summer.
Ideal for beds, borders and patio containers. Scented. Prefers full sun. In mixed borders, plant single colour drifts.