I still can't believe how many monarch and swallowtail caterpillars we ended up having. There were way too many for the number of edible plants we had in their enclosure. As a result we transferred most of them to their appropriate plants out in the open. For the first time ever, I purposely put caterpillars on plants in our garden. A bit bizarre, but the kids thought it was great fun and I'm OK with them eating milkweed, dill and parsley.