Sow indoors, January-April, to flower the same year, 0.5cm (¼") deep, in a tray of compost. Water well and place in a cold frame, unheated greenhouse, or on a warm kitchen windowsill. A temperature of 15-20°C (60-68°F) is ideal. Keep moist. Seedlings usually appear in 21-35 days. Transplant them to other trays, 5cm (2") apart, when large enough to handle. Always hold by a leaf, never by the stem. Gradually accustom young plants to outside conditions (avoid frosts), before planting out into well-drained soil, May-June, 30cm (12") apart, when frosts are over. Flowers: July to October.
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