Oregon Tilth is a nonprofit organization supporting and promoting biologically sound and socially equitable agriculture through education, research, advocacy and certification. Colleen has managed TIlth’s backyard education programs as well as its 6-acre organic demonstration food garden. Currently she serves as an Organic Specialist and co-coordinates the Organic Land Care program where she instructs professional landscapers, groundkeepers, gardener’s and designers from city parks, municipalities, schools to landscape companies on managing green spaces organically and responsibly.