Thanks Becky! I wouldn't consider them a nectar plant though. I see butterflies and hummingbirds in my daylily garden pretty often, and they might stop at one flower, but they quickly move on to other plants in the garden. The butterfly in the picture just didn't want to give up! It was out there for a good hour, and it really loved Frans Hals, but I'm not so sure that it got a meal. It also tried Mary Todd, but didn't stay on that one very long. It landed on a few others, but only stayed a few seconds, and went right back to Frans Hals.