Asclepias curassavica, incarnata, speciosa, syriaca and verticillata...and calotropis gigantea (Giant tree milkweed) I will have an (over) abundance of all of these seed within 2 weeks. I hate to let go to waste, so am hoping to spread them out amongst us determined butterfly gardeners. I also have a few calotropis gigantea. Please only ask for if you are serious about growing these seeds, I want to know they are being propagated Let you have for postage or trade of another specie I don't have. Please leave message here and with me through Gardenstew if you'd like some. *a. speciosa and a.verticillata are best in avg. to drier soils, prairie types. Same for calotropis, '...beachy sands, stands alone,' full sun from what I've been able to gather. more on calotropis: http://lee.ifas.ufl.edu/Hort/GardenPubs ... lkweed.pdf