My Great-Great-Grandfather, a City Park and Some Monarch Butterflies

There is enough land, more than enough land, throughout the Midwest (and beyond) to support monarchs and still grow more corn and soy than we need. There is enough land, along the highways, in the grassy green circles and triangles of interchanges, in yards and parks, on campuses, in vacant lots—anywhere, really—to grow a patch of three-season-blooming wildflowers, including milkweed.