Sow April-May 6mm (¼") deep direct into finely raked, moist, warm soil where the plants are to flower and rake the seed in gently. Germination usually 7-14 days. For earlier flowering, sow February/March 3mm (1/8") deep into good quality compost and place on a windowsill or in a greenhouse at approximately 18-21°C (65-70°F) to germinate. Space seedlings to 5cm (2") apart and grow on. Plant out 8-12cm (20-30") apart in a sunny position end of May. May also be sown in early autumn for early flowering next summer.
Ideal for beds and borders, patio pots and containers, greenhouse. Suitable for cut flowers. Attractive to bees and butterflies. Prefers full sun. Looks good planted with blue ageratum.