There are many informative national and international sites specifically dedicated to irises. The American Iris Society (AIS) is the national organization (US) for iris gardens, growers, hybridizers, regions and societies. See also (Additional Iris Links)
Locally, the South Plains Iris Society, accredited by the American Iris Society, hosts monthly meetings on the fourth Monday of each month, February through October.
The South Plains Iris Society is one of several AIS affiliates in Region 17 which covers all of Texas.