"Theo Asir" writes:

As far as burying and piling w/ mulch
stuff goes it has very limited use even
here in Z5.

If you want to try buring remember
you have to get below the frost line.
Here it is @ 24 inches. If you do not the
roots will freeze & your rose will die.

Theo, I guess I wasn't clear. I wasn't suggesting she leave them there all
winter. She said she was bringing her potted plants in the garage and I was
thinking of doing the same thing with these. They will still be potted plants,
just not on her patio where she's out of space. She can bring them inside
without disturbing the roots as much as planting and digging them up every
year. It was just to give her another location for roses in the summer.
Julie