Edit on post above: Should have said [daffodils, irises, and day lilies. ] If planting glads in that grouping, would place them near the back. I like irises, but they require too much staking and support for my style of gardening. I do think that the four would go well together in a naturalized bed however.
Eclectic gardening style, drawing from 45 years of interest and experience. Mostly plant in raised beds and containers primarily using intensive gardening techniques.