The Species Iris Group of North America (SIGNA) is dedicated to the study of the wild species of the genus Iris and related irids in order to promote a wider appreciation of these plants and their hybrids as garden ornamentals.
Our goal is to further their introduction and distribution through our seed exchange while supporting their conservation in the wild. We will disseminate scientific and cultural information about these plants to both our membership and the general public through our regular publications and website.
NEW MEMBERSHIP TIER! SIGNA now offers a new green electronic-only membership. Instead of receiving printed publications via U.S. Mail, members will receive them by email in PDF format. Dues for this tier are $6 per year, or $16 for triennial. Details are on the membership page.