Official website for the group of iris enthusiasts devoted to promoting the aril and arilbred irises.

Features a basic iris guide, a glossary of iris terminologies, cultivation information, and related publications.

Learn about CIS' history, events, and membership. Go over its index of articles as well.

Presents photo galleries, articles and references, a directory of display gardens, contacts, and related links.

Promotes the interest and development of iris varieties that have more than a single bloom season in a year.

Advocates for the culture, enjoyment, and improvement of Siberian Irises. With display gardens and lists of commercial iris sources.

Studies wild species for hybridization and use as garden ornamentals. Includes membership, publications, seed exchange, and species database.

Information about the Society's upcoming events, membership, and standing rules. With select articles on basic iris topics such as propagation and pest control.

Gateway to both the World Iris Association and Historic Iris Preservation Society websites.