Can be sown direct to garden, but for blooms in 1st year, sow indoors 6-8 wees before final spring frost. Sow in seed trays and lightly cover with compost. Cover and keep warm until germination in 10-15 days. Transplant to pots when large enough to handle. Grow in warm conditions, harden off and transplant into well drained, fertile soil, 2 weeks after final spring frost. Water regularly but do not overwater.