Sow seeds indoors 6-9 weeks before final spring frost. Sow on top of seed mix and gently press seed into the surface. Keep soil damp and warm. Seed will germinate in about 14 days. Thin to 1 inch after 4 leaves or so have developed, then thin to the strongest plants. Harden off for 10-14 days before transplanting. Transplant after final spring frost to warm, well drained soil.