DeWayne,
I see that there is an Iris Society near you, in St Louis. You might want to get in touch with them for information about local recommendations.
http://www.stlouisirises.com/b...
I've picked up some wonderful plants at my local Iris Society's annual sale. Prices were right, and they were all plants that do very well in this area. Plus, members were very friendly and happy to share their knowledge.
Even if you're not interested in meetings, you might want to check out their annual rhizome sale. (Not until August
)