06/18/2023
Common milkweed, well known for its important relationship with monarch butterflies, is about to bloom in the prairie!
As caterpillars, these iconic insects rely on milkweed plants as their lone food source. Milkweed is toxic to most animals, but monarch caterpillars spend their time munching on it and, when they’re adults, they have toxic properties too. Female monarch butterflies will not lay their eggs on any other plant, so it’s vital that we protect milkweed to support their population.
Recent efforts to grow more habitats for monarchs across the U.S. has led to an increase in milkweed in both community and personal gardens. Gardeners are encouraged to grow milkweed native to their region so, in Wisconsin, look for common milkweed, swamp milkweed, or showy milkweed. It is best to avoid planting non-native milkweed species because long bloom periods can prevent monarchs from migrating on time and can spread parasites to the butterflies.
Other ways to support monarch butterflies are to avoid using pesticides in your garden and to provide food for adult butterflies by planting nectar flowers. Those who are especially interested, can look into the Monarch Waystation program, which provides seed kits, a registry of monarch waystations across the continent, and general advice on planting gardens for monarchs.
What signs of late spring do you see? Visit us for a hike or take a walk around your neighborhood looking for cyclical events influenced by seasonal changes.
Photo: Stephanie Briand, Aldo Leopold Nature Center