I'm glad you posted, Melanie. Something in my mind was thinking about your forum but somehow the neurons didn't fire completely and I missed out on giving the answer you gave, which is the right one.
Let's talk about milkweed in the BBB forum. It's the right place, and will benefit the forum.
In the recent seed swap I dibbed a bunch of different milkweeds so I will be very happy if the conversation can be started. I'll participate if time allows.