Milkweeds for Monach Butterflies
You know that old saying "it is the greatest mistake to do nothing because you can only do a little. DO WHAT YOU CAN"
A recent article about reduced population of Monarch butterflies gave a website, which has a list of milkweed family plants we might plant in our gardens. I wonder if youth groups might also plant seeds in empty fields/open areas. My Cub Scouts did this with CA Poppies years ago, and kids still talk about the pleasure of seeing results in roadside planting area. Anyway ... just a 'pay it foreward' idea.
Here is a link that might be useful: Milkweed profiles