See also:

• Home: Gardening: Regional: United States  (17)
• Regional: North America: United States: Recreation and Sports  (66)

• African Violet Society of America - Presenting information about growing, showing and propagating African violets and other gesnariads.
• American Association of Amateur Arborists - A loose association of individuals and groups who are interested in learning more about trees and other woody plants
• American Bamboo Society - Offers information about bamboo including a species source list, a list of international bamboo societies, information on climate anc growing zones.
• American Conifer Society - Information on the more than five hundred species of conifers distributed around the world.
• American Horticultural Society - The AHS mission is to educate and inspire people to become successful and environmentally responsible gardeners by advancing the art and science of horticulture.
• American Public Gardens Association - Supporting the public horticulture community in its mission to study, display, and conserve plants.
• American Society of Landscape Architects - Founded in 1899, the society has twelve thousand members. Includes a buyers guide on landscape information.
• Cycad Society - Education and conservation of Cycads, rare and unusual gymnosperm plants. Quarterly newsletter and a seed bank available to members.
• Deep South Region of National Garden Clubs, Inc. - Information about Federated Garden Clubs and their projects in the states of Alabama, Florida, Georgia, Louisiana, Mississippi and Tennessee.
• The Ecological Landscaping Association - Advocates environmentally responsible landscaping and horticultural practices by professionals and the public. Information about events, newsletter, and membership.
• The Gardeners of America/Men's Garden Clubs of America (TGOA/MGCA) - Organization with local chapters around the USA, focusing on gardening education and community gardening initiatives. Information about membership, clubs, and events.
• Gardening Organizations and Associations - Information on events, newsletter, tips, children's projects, and gardening information.
• The Gesneriad Society - Offers culture information, membership benefits, resources, photos and flower show and sales schedules.
• Hardy Plant Society Mid Atlantic Group - Gardening society centered around the Philadelphia area. Brief information and membership signup form.
• Heartland Peony Society - Educational information on peonies and specific information on the society in the US midwest.
• Holly Society of America - Provides an information exchange through scientific studies, publications, lectures, meetings, and visiting holly collections.
• Mid South Hosta Society - Gardening club devoted to hostas.
• National Capital Area Federation of Garden Clubs, Inc. - Washington-area chapter of the National Garden Clubs, representing over a hundred area clubs. Provides membership information, news, event calendar, and links to local gardening groups and affiliates.
• National Garden Clubs - Provides education, resources and national networking opportunities for its members to promote gardening and floral design. Includes calendar of events, educational opportunities and image galleries.
• National Gardening Association - A non-profit organization offering National Gardening Magazine, educational and youth programs, gardening products, books, research, online content and showcases, and a gardeners buying guide.
• National Home Gardening Club - Member-oriented site for this United States gardeners' club, providing access to bulletin boards, members' photos, articles from the magazine, and member benefits.
• The New England Botanical Club - Promotes the study of the plants of North America, especially the flora of New England and adjacent areas.
• New England Gardeners - Discussion group and forum with a New England focus.
• Northern Gardener - Home to Northern Gardener Magazine and the Minnesota State Horticultural Society. Features gardening articles, advice, tips, calendar, and resources.
• Northern Plains Botanic Garden Society - Working to establish a botanic garden, conservatory, and arboretum in the Fargo, North Dakota and Moorhead, Minnesota area.
• The Northwest Horticultural Society - Organization for gardeners and plant lovers in the Pacific Northwest. Event calendar, membership information, articles, and newsletter.
• Oasis Botanical Sanctuary - Uses scientific research to educate the public on the proper methods of ecological development.
• Pioneer Valley Water Garden and Koi Club - Club for Western Massachusetts and Northern Connecticut provides listing of club officers, meeting schedule, pond tour photos, and a membership application.