- Dumfries & Galloway Plant Heritage
- For people interested in rare plants and their conservation, featuring organised events, plant exchange, and forum. - Flitwick Gardeners Association
- Includes information about the Seed Box shop, membership fees and benefits, and the group's history. - National Association for the Conservation of Plants & Gardens
- Seeks to conserve, promote, and make available Britain and Ireland's biodiversity of garden plants for the benefit of horticulture and science. - National Gardens Scheme
- Raises money for selected charities by opening gardens of quality and interest to the public. Publishes a reference guide to private gardens open to all. - National Society of Allotment & Leisure Gardeners
- Aims to help everyone enjoy the recreation of gardening and so promote health, education, and community fellowship. - Perennial - Gardeners' Royal Benevolent Society
- U.K. charity helping horticulturists in need, by providing support services for those who are working in, have worked in, or are retired from the industry.
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