Mysterious iris

These particular Dutch irises have never bloomed for us. So far, there are two flowers and there may be more. The standards appear from a distance to be a washed-out periwinkle blue; up close it can be seen that the blue is not all that pale but that there's white, also, creating a watercolor effect. The falls are brilliant white and ruffled with very regular curves along all the edges. Did they come from Sledd's? We've seen more bachelor buttons, more clematis, more delphiniums, more Shirley poppies, more geranium narcissi, more ipheieon, stragglers among the ranunculus and daffodils, and another round of red and of blue anemones. The leftover trailing nasturtiums are loving this weather. As to Dutch iris, we're seeing the purple ones with gold eyes, but no yellow, yellow-and-white, or just plain white ones yet. The last bunch of oak leaves is midway through dropping; the pecan is leafing out and blooming.