Something you all might find interesting is that NGA is a co-founder of the National Pollinator Garden Network, which is a consortium of gardening and wildlife organizations that are working together to promote the planting of plants that benefit pollinators. As part of that organization, I've renewed my own interest in the subject, and milkweed is obviously one of the top plants that comes up when considering butterflies.
In the recent seed swap hosted by poisondartfrog I called dibs on a good number of different species, and I'm excited to try to get them all established here. On our property we have 90 acres with a variety of different soils and conditions. Some is forested, some is very wet bottomland, and some is open pasture. My hope is to get milkweeds to naturalize in many of these areas. With luck I'll have some reports of success in the future!