It’s a wonder to see how pleasantly symbiotic the whole relationship is. The milkweed relinquishes its leaves while maintaining life sustaining energy in its deep taproot and regrows. The caterpillar receives its nourishment, including the bitter toxin from the plant that provides a layer of protection from predators, even as an adult. Pollinators will be by eventually to pollinate the flowers which will create pods of wind-dispersed seeds. Human interactions don’t ever seem this smoothly cooperative.