Not only are they beautiful but the whole daylily is edible, from it's tuberous roots to stem, buds and lovely flowers that only lasts a day.
In Missouri, the orange flowers brought to North America by the first colonists are know as "ditch lilies" because they've naturalized along Missouri's road sides. I happen to love these flowers; they've helped stabilize soil on my hillside and added long-lasting beauty to my garden, and my dishes.
To use, remove the stamen; wash, then dry on paper towels or clean dish towels.
Add a daylily flower to a salad, either whole or in pieces. Make sure you're picking flowers from an area that hasn't been treated with pesticides. Although these are common daylilies, all daylilies are edible.