There are quite a few iris I would place near the top of my list, but whenever Iris cycloglossa blooms for me, I am struck by the elegance of its colors, form and its heavenly fragrance. It is so distinctive it's hard to accept that it's a juno. Seems to me to be in a category of its own. I have always had the best success with it tucked by a stone or a wall. I wish you could sniff it!