I have discussed this with members of the Utah Iris Society. I think a general statement about rebloom here would be occasional but not dependable. I do see a white one blooming in gardens in the fall,,,,probably Immortality. Suttons were moving to Idaho to work on cold weather rebloomers but both passed away.. Now, regrettably, that work won't go on unless there son carries on. I bought Ozark Rebounder last summer in hope of some rebloom. It was pretty this spring. I will keep my fingers crossed.
