Sow indoors, February-April. A warm kitchen windowsill is all you need for starting these seeds. Sow, 1.5cm (½”) deep, in trays of compost. Water well and place in a warm position. A temperature of 20-25°C (68-77°F) is ideal. Keep moist. Seedlings usually appear in 21-35 days. Transplant them, 5cm (2″) apart, to other trays when large enough to handle. Always hold by a leaf, never by the stem. Grow on in cooler, but not cold conditions. Gradually accustom young plants to outside conditions (avoid frosts), before planting out, May-June, 30cm (1′) apart, into well-drained soil, when frosts are over. Flowers: July-October.
Flowers
Flowers