I brought in some milkweed cuttings to keep them from taking over as they self seed (this is a non-native milkweed which is 👍🏼 for monarchs, but it needs to be managed). I checked to see why it looked ratty all of a sudden and found SIX monarch caterpillars munching the leaves. Escorted them to the more abundant milkweeds in the backyard. Good luck little ones!