British Iris Society
Features a basic iris guide, a glossary of terminology, cultivation information and details of shows and regional and special interest groups.
Group for Beardless Irises
A special interest group formed to foster interest in beardless irises by the exchange of ideas, seeds and plants. Includes membership, newsletters, and a directory of links to national collections, suppliers, and related societies.
West and Midlands Iris Group
Caters for people who love and grow irises in the Midlands, the West of England, and Wales; includes their show schedule and meetings programme.