According to Monarch Watch, creating a Monarch Waystation can be as simple as adding milkweeds and nectar sources to existing gardens or maintaining natural habitats with …Residents at Asbury Place Kingsport have been growing milkweed and raising monarch butterflies for five summers. Caterpillars are starting to populate at Angel Tree Grove as well. A similar waystation at Monarch Grove has already yielded 30 to 50 caterpillars, Kilo says.