Air potato (Dioscorea bulbifera) and Chinese yam/Light root (Dioscorea batatas) are relatives.
The former grows big aerial tubers/bulbils, the later is cold hardy.
Is it possible to somehow graft the air potato stem onto the Chinese yam roots and grow aerial tubers in a colder climate (7a)?
Opportunity is missed by most people because it is dressed in overalls and looks like work - Edison. Tiny ad:
grow your own garden and build your own home in the gardening gardeners program
1
