I have a bunch of dahlias in the basement right now that never got any new growth during the winter. Should I just throw them away? Are they going to bloom?

Right now they are just dead tubers and stocks. I've heard mixed reports from garden center people whether they will grow or not.

I don't have a ton of garden room to just try them out but I guess I could try them in pots for a month and see what happens OR am I wasting my time.