Personally, I would bring it inside and let it row as long as it wants. I've had maybe 50 of them come up over the last month and they are all under grow lights now. If you want nice tuber growth then keep it growing!!

Do not let the frost whack these plants.....this might cause the tuber to rot from being in cold, wet soil....I would think this is a big mistake. I bring my huge konjacs in the garage in pots (24-30 inch diameter and yes, they weigh a ton) and stop watering them completely and let them go down when they want. When we get a nice day later this fall and they have started to look really bad I dig them out of their pots.

If I have a new species then I always store it in peat or potting mix since I'd rather be safe than sorry :o) Dan

Dan-
Thank you!! A fun Genus, and I appreciate all of your advice!