• Belvedere House Park and Gardens - A visitor attraction with visitor centre, shop and restaurant. Visitor information, events, function rooms.
• Biltmore Garden Tour - Forests and gardens, designed by landscape architect, Frederick Law Olmsted.
• California Garden & Landscape History Society - Background, activities and membership.
• Museum of Garden History - A few details of the Trust and a contact email.
• Southern Garden History Society - Organization dedicated to the preservation and restoration of historic Southern U.S. gardens, and education about Southern landscape history. Information about membership, events, and publications.

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