I’d never given much thought to the monarch butterfly, other than admiring them, until recently. I have friends who raise monarchs with their grandchildren. Their forays into nature always include searching for the increasingly rare milkweed plant. Milkweed is essential to monarchs for two reasons. First, monarch caterpillars only eat milkweed. Secondly, monarchs need milkweed to lay their eggs. In essence, the full life span of the monarch butterfly depends on this plant.