New York Botanical Garden, Bronx, NY

The New York Botanical Garden offers many classes on native and ecological landscaping and gardening that are suitable for homeowners wanting to learn more about organic techniques.  They have an Environmental Gardening track with many classes on sustainable and organic gardening, suitable for beginners and experts alike, that can lead to a certificate. Visit their website to learn more,  (Search on Environmental Gardening for track info.)

New York Botanical Garden
Bronx River Parkway at Fordham Road
Bronx, NY 10458