I have a collection of miniature roses in pots, some a few years old, and some from last year. They are in pots, not in the ground. Tried that before, too much winter die-off. They do well in pots as long as I can keep the local squirrels out of them. Some were kept over winter in the cool part of the basement, some in our barely above freezing shed. Most of them are coming back beautifully. However, it looks like I lost one. Not real sure what happened except I might have kept it in the grocery store pot too long before planting it in a bigger pot with decent soil. Now I have to wait for the others to bloom so I can see what color the dead one was.
They cost between $4 and $6 a plant at the grocery store. Not too bad for a bit of enjoyment.