I found one to order in the Spring.
Like I don't have enough plants already!
This online company says some folks have grown it in my zone, with protection. We shall see...
It's already been down to about 10 degrees Fahrenheit here....kind of early for us. We usually don't get quite that cold until February, so I know what you mean as far as being caught unprepared and over-stocked with tender goodies. I was going to bring in a Papyrus, but I fear it may have gotten too cold in the (unheated) GH already...