I saved three suckers from a China Doll Rose. I put them in small pots with potting soil as the medium. I would like to over winter them in the house. What are the chances of their survival? Should I go ahead and plant them outside or is it too late? I believe these suckers to be "true" as one of them actually bloomed while in the pot I put it in and the rose is identical to the parent rose bush.

Any advice would be greatly appreciated.