Q.sweet potato vine
I purchased lime green sweet potato vine plants from a nursery last spring, and there are tubers on the bottom as I clean out the pot for winter. Are these edible?
Downtoearthdigs
Answered on November 15, 2017
Yes, the tubers from ornamental sweet potato vines are edible, but they may not be as tasty as the varieties bred for food. Just make sure the plants haven't been sprayed with pesticides that aren't intended for edible plant use.
https://expert-hort.sws.iastate.edu/faq/view/id/191
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