I think that's another reason to mix nectar plants with host plants. So everything doesn't get eaten to the ground!
But I always tell people, you can't just plant a lot of flowers and expect them to come just for the nectar. I mean, they'll come for the nectar, but they'll stay for the host plants. So I've got the Rue for the Black ST and Giant ST, I have the Sweetbays for the Tiger ST, the Carolina Petunias for the Buckeye (and maybe White Peacock, I've heard), Passion Vines for the Zebra LW and Gulf Frits, even the Pentas host the Tersa Sphinx Moth. My Pipevines are just to the right, and then to the right of that my Sassafras and Spicebush are just starting to leaf out. Sennas are out on the corner by the road since they're nigh indestructible. I was talking to my False Indigo today but it's always the last thing to leaf out. It hosts the Silver-Spotted Skipper which I am lucky enough to get on occasion.
I've gotta clear some space for the milkweed seeds in the fridge. I think I know where I want to put them but I'm going to read up on them again just to be sure it's the right amount of shade and sun. Which reminds me, Dad and I are pretty sure we saw a Monarch near the end of the day but it flew across the road so we didn't get a good look.