Sow in a propagator on a windowsill or in a greenhouse at approximately 15-20ºC (60-68ºF) using a good quality, finely sieved, moist compost, pressing the seed lightly into the surface. Do not exclude light (germination 10-21days). Transplant seedlings, spacing them out 5cm (2") apart in seed trays and grow on. Plant out 40cm (16") apart in a sunny position. May also be sown July-September in a cold frame for planting the following spring.
Ideal for beds and borders, patio pots and containers, greenhouse. Attractive to bees. Suitabel for cut flowers. Prefers full sun. Remove dead flower stems to encourage further blooming.