Over the weekend I discovered that we’ve been hosting a Black Swallowtail buttery caterpillar (Papilio polyxenes) on a patch of dill I have growing in a pot on the roof. We have so much dill, losing a plant or two to this little guy/gal is not a burden. I worried the caterpillar might transfer over to the ‘Red Malabar’ spinach growing nearby and start eating that, but thankfully this species only has eyes (or mouth parts) for Umbelliferae family plants such as dill, parsley, ‘Bronze’ fennel, and Queen Anne’s lace.
I love these unexpected educations in nature that come from growing a garden. Even a pot on a roof can bring about these sorts of surprises.
UPDATE: Make that two! I just found a second, bigger caterpillar in another pot of dill. I think they need names.