Josh: I have been growing Irises for about 7 years now. I wont say I grow amazing Irises but they grow good enough. Probably the only thing I have seen that I have to do much different than most the country is I do have to be careful what gardens I grow the SDB/MDB's in. I have to put them in a garden with only part day morning sun.
Also, almost all my Irises start getting brown tipped leaves in the hottest parts of Summer from the heat and in extreme cases one or two might lose all its leaves. But in the fall they resume growing well, start hibernating again in Winter and then in Spring emerge with lush beautiful foliage and flowers.
That said, my bloom rate ranges in the 45 to 60% range per year. I have not been able to join a local Iris club due to family schedule conflicts but still hope to at some point. But if you have time, I would say they or their websites will give the best local advice.
