I don't think it's a good idea. Plastic doesn't breath and it will trap a lot of moisture that could cause rot and/or canker. I learned the hard way that plastic of any kind when touching the canes causes damage.

What about placing cloth around the climber, then bubble wrap, then more cloth. Would that work, Seil??

Carol

Seil is right - plastic is a no-no even if it's over cloth - still won't be able to breath! I use what we call 'wood-wool' and burlap. The main thing is to keep off the frost and protect the rose from the cold winds.

Mighn't it be ok if one built a teepee of sticks or rebar over the plants and then cover that with the bubble wrap, maybe poking holes in it to allow for air circulation? because though in my warm area I don't need to protect mature roses for winter, I DO have to protect newly-planted babies, especially bare-roots, and i 've had problems with disease issues mounding with organic material. Instead I've had great success using broken-up pieces of styrofoam and wine corks. I prop the styrofoam pieces up around the canes,supporting them on the outside with rocks, etc. Air still can circulate easily, since it's by no means air-tight,but the fact that these materials are completely inorganic means that bacteria and fungus doesn't breed easily. Just a thought...