Very pretty, Sherry. I don't have many companion plants that bloom at the same time as the irises, most of the mixed beds I have are more for successive color. Tulips bloom, daffs, and peonies, then dwarf irises, then MTB irises, then TB irises, a few sibs, then lilies, then Daylilies and some mums at the end. A half dozen Clematis bloom on and off all summer. And some spider wart that blooms all summer. I guess the coriopsis (sp?) jumps in there some place, and is still in bloom. A couple of plants with various colors of foliage thrown in for good measure.
A bed during iris bloom Blue star flower is blooming too I guess. and a rose that I just planted, but I don't think it will bloom that early in future years.
Same bed during lily bloom, daylilies are just starting here, I didn't take a picture of the bed when they were in full bloom
Here's Wintry Sky and a NOID Sib