Thanks again .
My options are heated garage or outdoors where they may not get enough water in a pot. I've only had a few roses survive the winter in a pot outdoors, and they were either minis or Drift roses. I can't bare root them because I have no consistently cold place. Our temps fluctuate wildly all winter.
I have some 15 gallon cans that I used for tomatoes, and they have a really good mix in them already. I have another question about that, but I think I'll start another thread for that.