Sweet potato vine ornamental

Question

I’ve been saving my sweet potato vine tubars from last year (in dark cool place during the Ontario winters).
I planted them and they are coming up with a totally different leaf…long and skinny….still lime green.
Does anyone know why the leaves have changed?

Answer 1

These are likely just the newer leaves and as they mature they will change shape.

https://www.gardeningknowhow.com/edible/vegetables/sweet-potato/winterizing-sweet-potato-vines.htm