Huntington Botanical Gardens
San Marino, California, USA. The gardens, on 150 acres, include 10 specialized gardens, several theme areas, and collections from other countries cultivated to share with others.
http://www.huntington.org/BotanicalDiv/HEHBotanicalHome.html

Royal Horticultural Society Gardens
The index page to all the information on gardens - including RHS gardens. As well as the beautiful RHS Gardens at Wisley, Rosemoor, Hyde Hall and Harlow Carr, RHS members have free access to a wide range of outstanding and inspirational gardens around Britain and in France.
http://www.rhs.org.uk/gardens/

The Public Gardens of Royal Roads University
History of the gardens and plant collection database. Victoria, British Columbia, Canada.
http://www.royalroads.ca/channels/about+rru/campus+information/grounds+and+gardens/default.htm

Royal Botanic Gardens, Kew
The Royal Botanic Gardens, Kew is one of the world's leading botanic gardens. Holding over 1 in 8 of known plant species, the gardens at Kew and Wakehurst Place offer a unique day out in stunning surroundings. The site also offers information about Kew's science and access to its databases.
http://www.rbgkew.org.uk/

Ardastra Gardens, Zoo and Conservation Centre
The official website of Ardastra Gardens Zoo and Conservation Center, Nassau, Bahamas. Home to the largest collection of Bahamian land animals in the world. We are also a breeding Center for many endangered species of the Bahamas.
http://www.ardastra.com

Botanic Gardens Conservation International
It is estimated that up to 100,000 plants, representing more than one third of all the world's plant species, are currently threatened or face extinction in the wild. BGCI brings together the botanic gardens to work for plant conservation through science, education and horticulture.
http://www.bgci.org/

Birmingham Botanical Gardens
Volunteer based organisation promoting public knowledge of plants and gardens. Provides an image gallery. Birmingham, Alabama, USA
http://www.bbgardens.org/

Mount Holyoke College Botanic Garden
Greenhouse, gardens, and arboretum featuring several specialty gardens and collections. Information about education, research, and annual flower show. South Hadley, Massachusetts.
http://www.mtholyoke.edu/offices/botan/

Ladew Topiary Gardens
Topiary and flower gardens plus a nature walk and historic home. Includes events calendar, history and rental information. Maryland.
http://www.ladewgardens.com/

Dutch Botanical Gardens Collection Foundation
SNP,Nationale,planten,planten collectie,cultureel erfgoed,botanische tuinen,biodiversiteit
http://www.nationale-plantencollectie.nl/