You don’t need a college degree to become a great gardener, but taking a class or two can not only help improve your gardening knowledge and skills, it can also be a great way to meet fellow gardeners in your area. Many park and rec departments offer classes on gardening, composting and other related topics, as do local community colleges and many garden centers.
If you want to dig deeper, there are a variety of programs available through universities, colleges and specialized educational centers. Here are just a few to get you started.
Occidental Arts & Ecology Center, permaculture and ecological design
Sonoma State University Extension, Sustainable Landscape Certificate
Permaculture Institute, courses offered in various locations