The City of San Francisco has a great Gardening and Composting Educator Training Program GFE. They are currently accepting applications through Saturday the 11th of February for their next training that will take place Feb. 25-May 17. Classes are held at: Garden for the Environment, Seventh Ave. at Lawton St., S.F. (415) 731-5627. Read more about gardening activities in the San Francisco area here.