Outdoor Sowing: Choose a sunny position and sow thinly direct into finely raked, moist, warm, weed-free soil, 6mm (¼") deep. Germination 10-21 days. Thin seedlings by degrees to a final spacing of 25-30cm (10-12"). Indoor sowing - in pots or trays in a windowsill propagator or greenhouse at 15-20˚C (60-68˚F), 6mm (¼") deep in finely sieved, moist compost. Transplant seedlings into trays 5cm (2") apart and grow on prior to planting out.
Ideal for beds and borders, patio pots and containers. Suitable for cutting. Prefers full sun. Can be started off inside, but usually performs better when directly sown as plants do not like root disturbance.