Maybe you could find out what the name of it is and write it down. Then you could look to see if there is someplace that offer's the seed's?Ooooh gosh I think they are different. That would be so cool to be able to get a big packet of seeds! I'm coming to understand that there "milkweed" actually is a pretty big family of plants and the ones that do best here are a smaller subset. Summer Winds said they had 2 arid varieties, the Desert Milkweed and one other.
I've been to Butterfly Wonderland which is pretty nice (especially when it's reeeeally hot because they climate control it), but I've had even more fun finding out that my latest "arida" passionfruit plant is a host for the gulf fritillary butterfly. I wouldn't mind adding a few monarchs to the mix!