Yeh, they are "Air Potatoes" not the potato vine(or "Sweet Potato Vine") I got 4 potatoes from an old girlfriend back in the late 70's('Bout the size of bent dimes,but they do sometimes get the size of a quarter). Someplaces' like Fla. I believe consider ths a "Nuisance" plant..Where I live, it wont do good unless you water it. Also, if you have it where morning glories are, the potato vines will come out first..Once the morning glories get started the potato vines wont have a chance to their full potential..As a matter of FACT, YOU WONT BE ABLE TO SEE THEM BEHIND THE MORNING GLORIES.
Once established, you'll have them for along time(maybe forever, unless you tear them out and mow them)..Another nice thing about them is that, unlike honeysuckle, they pull of the fences and lettice easy!.
If you google it, most findings are about how terrible they are.There ARE some search results of people who like them though.
For about 2 weeks of the year when this plant flowers there will be a VERY LIGHT scent of cinnamon in the air. You just notice it when you're least expecting it.
They potato part comes from up on the vine itself. What i have seen though is the tuber underground!(on the web)..These can be massive in some areas!..There are ways to eat these but I really havent tried any of the methods yet.
My 4'oclocks smell nice, usually in the evenings...During the day I usually bend down to take a sniff now and then..It takes me back to when I was a kid in Amarillo! I suppose thats why I've always like them.
Around here crawdads can live in hot, stagnant waters. The only reason I have them is because they were at a tropical fish store for about a dollar a bug. I thought I was saving them

I've reached in my pond many times and pulled it out with frog eggs stuck all over it. One time I got a turtle, thinking it was a rock which had fallen in, and the best thing that came up was a green snake!(He was there to eat frogs I assume) I thought at first i was pulling up a water line till it tried to get away!
These air potatoes will probably grow up there..If you have permafrost it will most likely kill the tuber, but then again, maybe not. I'd be glad to send you some little potatoes to plant as they should be sprouting any time here. once you have the plants growing you'll get air potatoes every year in the fall!
I can also send you some seeds of my 4'o'clocks come fall..Most are yellow, but theres many colors I have growing..The "Hummingbird Moths" LOVE them!
Just PM your mailing address.
Anybody else here wants any just do the same..PM me
Oh yeh,...By the way, if you didnt notice, my pond is the kind you use a liner to make.(Like a plasstic bowl, sort of)..Its not natural..Around here, if you dig a hole for a pond and dont use a liner all your water will go away, along with any critters..You HAVE TO use a pump to at least steer the water so it doesnt stagnate or get mosquitos in it.
ok,...I better go outside...I think the weather is changing and i dont want to miss the rain!
your friend,
john