Okay! That’s great news! We have a native milkweed up here that has a huge round leaf and nice size flower cluster that is green. Our mother , a school teacher for life, taught us very early on to leave the milkweeds alone in the pastures and told us of their importance to the monarchs survival as a larval and nectar source as they migrated back south from Canada. I don’t think she knew that we with pastures and milk weeds were helping to create that last super group of monarchs that must make it to Mexico to over winter. Most people are unaware that , no stage of the monarchs life cycle, whether it be the egg, larvae, pupae, or adult butterfly is hardy to a freeze and will not survive one. Thus the need for the mass migration. There is nothing like a beautiful perennial garden full of butterflies and honey bees bringing the garden into motion and even more full of life. I really do want to plant massive amounts of different milkweeds. I think up here In our drier climate Asclepia tuberosa would thrive and perennialize . In Dallas there was to much rain and soggy clay for it. I have beds that I’ve begun planting with perennials and that I water that Asclepius incarnata would thrive. They don’t kneed that much moisture. I’ve also saved a few seeds from the native one up here.