Sage (Salvia officinalis) is a small perennial evergreen subshrub, with woody stems, grayish leaves, and blue to purplish flowers. It is a member of the family Lamiaceae and is native to the Mediterranean region, though it has naturalized in many places throughout the world. It has a long history of medicinal and culinary use, and in modern times as an ornamental garden plant. The common name "Sage" is also used for a number of related and unrelated species.
Sage grows very slowly from seed. Sow in a good compost covered only be a light sprinkling of compost or vermiculite. Put the container in a polythene bag and maintain at 15-21°C (59-70°F). Do not exclude light, as this helps germination. Germination should take place in 10-21 days.[1]
Harvest lightly the first year until the plant becomes established. Pick leaves sparingly the first season and replace entire plant after three seasons, because it becomes woody.[1]