Sow seed 6-8 weeks before final spring frost. Prepare trays or pots with fine seed starting compost. Gently sprinkle seed on top of the mix and then cover lightly with the mix. Water gently so as not to disturb the seeds. Do not overwater. Cover and keep at about 15C. As seedlings grow, thin to larger pots. Harden off and transplant 1 week after last spring frost.