Start seeds inside 3/15-4/15. Sow 2-3 seeds 1/4" deep in one container and keep at 65-70°. Days to germination: 7-21. Thin to 1 plant per container. Transplant outside after last frost 5/20-6/30, spaced 12-18" apart. Or, sow seeds directly outside in spring 1/4" deep, 1 seed every 3". Thin to final plant space of 12-18" apart. Sage does not like waterlogged soils so plant where water does not pool. Plants are perennial and hardy to zone 5. Cut plants back to 6" every year to prevent them from getting too leggy.
Clip stems with leaves. Use fresh or bundle and hang to dry.
Harvest dried flower stalks as they dry out late summer. Mature seeds are dark brown.