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 | Association of Professional Landscapers - Represents professional landscapers in Britain. Member companies abide by a code of conduct and you can find members at this site.
|  | Garden Writers' Guild - Information on their activities, with a diary of events, information on membership, and a large directory of garden related websites.
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 | Institute of Groundsmanship - Membership and other useful information from organisation representing groundsmen, greenkeepers and all others involved in landscaping, horticulture, and amenity management.
|  | Institute of Horticulture - Represents all those professionally engaged in Horticulture in the UK and Ireland, maintains list of consultants.
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 | Landscape Institute - National organisation in the UK for landscape professionals, comprising designers, managers and scientists, concerned with enhancing and conserving the environment; maintains directory of registered landscape practices.
|  | Perennial: Gardeners' Royal Benevolent Society - UK charity dedicated to helping horticulturists in need, providing a range of support services for those who are working in, have worked in or retired from the industry.
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 | The Professional Gardeners Guild - An organisation for gardeners employed in private gardens and estates. Based in the UK with members in European countries and the United States.
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