You mean dutchmans pipe? I know Mail Order Natives has some pretty cheap and there in Florida.

If you get some best get Aristolochia tomentosa it grows fast for me and Aristolochia fimbriata White Veined these grow fast and mine do better in half sun morning.I also have tons of Aristolochia macroura it grows in shade well and likes alot of water.
Angie

Here is a link that might be useful: pipevine

That's it. Mail Order Natives. It is the Tomentosa. I had Pipevine swallowtails lay eggs on my other pipevines but they don't make it due to the toxicity. Thanks