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.
- http://www.southerngardenhistory.org/

Belvedere House Park and Gardens
- A visitor attraction with visitor centre, shop and restaurant. Visitor information, events, function rooms.
- http://www.belvedere-house.ie/

California Garden & Landscape History Society
- Background, activities and membership.
- http://www.cglhs.org/

Museum of Garden History
- A few details of the Trust and a contact email.
- http://www.cix.co.uk/~museumgh/tradescants.htm

Biltmore Garden Tour
- Forests and gardens, designed by landscape architect, Frederick Law Olmsted.
- http://www.biltmore.com/