I've not seen enough irises to know which ones are rare but just wanted to say that I plan to volunteer for the Elmohr iris sale going on next July, I'll keep an eye out for any that make this list. There are gardeners in that group that have been iris collectors for several decades, might be able to find a few. Also plan to visit the 3 big growers I've found online in CO next April/May and will keep an eye out there as well.
