Aesclepias variegata (photo:) http://www.pbase.com/birddan/image/79043529
This very pretty dry woodland milkweed is native as far north as Connecticut USA; but is very seldom offered for sale. It's been suggested that it might be marginally hardy in the north, but may vary with source? Senica Hills did offer, but mine in a cool partially shady spot, did not make it through the first winter.
Apparently it's a difficult plant to cultivate.
Any success stories out there?
Charles Swanson MA USA