psst hey online nursery Joyful Butterfly has Woolly Pipevine in stock again, if you live in one of these states consider getting one of these so the pipevine swallowtails can eat. In my experience they're one of the most difficult large butterflies to get the correct food plants for.
you may have heard of Tim Wong's successful project to re-establish the western subspecies of pipevine swallowtail to San Francisco, great example of what you ca do with a small outdoor space and the correct plants: www.vox.com/2016/7/6/120...
I ordered one from them and my dog ripped it out of its pot and I never got around to replacing it -___-
Joyful Butterfly is where I got my passiflora incarnata and it was a huge hit with the wormies! It was such a huge hit that they ate it all and I have no idea what I'm supposed to do now.