What can I say, Karla? You are a wonderful photographer and I enjoyed each and every one of those iris.
We are at 2500 feet with red, rocky dirt and I have planted a lot of iris and have been rewarded with only a few (like 2 or 3) blooms. I think I probably need to improve the soil, fertilize or something.
I'm sure your Dad knows, he obviously has a "green" thumb and knows what he is doing!