Dioscorea elephantipes:

Related to the yam, Dioscorea elephantipes is the world’s most special potato. Some extremely old plants in habitat have been recorded reaching up to 7 feet in diameter.  Although most Dioscorea in cultivation are much smaller, they are no less impressive—shooting off a vine that grows faster than you can water it. 

needs water when in vine/ actively growing.

Do not not pull out vine.... this can kill your plant ( trimming the vine is perfectly fine, leave an inch or two of stem).

Currently growing in 4" pots

U.S. SHIPPING ONLY
Plants are individually boxed and ship bare root, pot/soil not included