I picked up a pretty peach one at the grocery store last year for my pots on the patio. My patio pots are large and I plant perennials in the pots with the roses. We start to get a lot of frost days in Nov.
That is when I pile leaves on top of the pots and push them against the back part of the patio against the building. They survive most times sometime they do not make it through the winter if we have one of those bad winters.