Sweet Potato

This is a plant that once was and still is a regular grocery store
sweet potato. I usually try to eat them, but really I'm not a sweet
potato lover. Anyway, this one stayed on the window ledge so long,
that it started to sprout! I figured since it was sprouting, I would
see if it would grow into a plant. Much to my surprise, it did! All
winter it lived in the kitchen garden window, and now I am going to
see if it can live on the back deck in partial shade.