Gotcha! I'm pretty lucky that I can always take my refugee caterpillars to MOSI. Or, just pick food from MOSI and bring it home. Pipevine is one of those plants you don't just find growing on the side of the road so it is a lot harder when you run out of food for them. Not as easy to find sources, especially when you have to make sure it's not the tropical pipevines everyone likes to grow because of the showy flowers.