memays said:The native host plant around here is golden zizia.
I don't recognize that plant as something growing around here. It may, but I don't recall seeing anything like that. Still, they must have some kind of native host plant. I'm way out in the country and the butterflies are here. They surely aren't coming from someone's garden. The nearest one of those would still be quite a distance from me. I suspect the nearest garden is 4 miles or more and no guarantee that it grows dill, parsley or fennel. Doesn't seem too likely to me.