Sow outdoors in early spring or early fall. To start indoors sow 8-10 weeks before your last frost date. Optimal temperature for germination: 19°C (65°F). Bottom heat speeds germination. Harden off transplants before planting in their permanent outdoor location. Grows best in well-drained soil in full sun. Space plants 20cm apart. Harvest flowers as they open and use fresh or dried. Harvest leaves spring thru early summer and dry for winter use.