The Garden Conservancy | 1,541 followers on LinkedIn. Preserving, sharing, and celebrating America's gardens and diverse gardening traditions | The Garden Conservancy was established in 1989 by the distinguished American gardener, Frank Cabot. Since its founding, the organization has done more than any other national institution to save and share outstanding American gardens for the education and inspiration of the public. In partnership with garden owners, gardeners, communities, horticulturists, garden designers, and historians, we work to preserve outstanding gardens across America.