Royal Caledonian Horticultural Society
The Royal Caledonian Horticultural Society (RCHS), also known as the Caley, is the national horticultural society of Scotland, and was founded in 1809. Members include both amateur and professional, generalists, specialists and those who simply like gardens and gardening.
Source: Wikipedia — Royal Caledonian Horticultural Society (CC BY-SA 4.0)