I have 4 fig trees, Kutoba and Mission, here in Bedford NY. I used to have Brown Turkeys which I would dig up and overwinter in the window of the unheated garage. But 3 years ago when we had the 65* January followed by the 10* February, they gave up the ghost. The way I deal with them now is a bit involved, but it woks well. I leave them in the ground, tie them up with twine, roll fiberglass house insulation around them, and then wrap them in plastic sheeting. It's then all topped off with an upside down bucket to keep the rain from getting into the insulation, because of the mold issue. This technique has worked very well the past three seasons, no winter kill at all. My new frustration is that the last 2 years I had lots of small figs that never quite ripened because of the cool August. We gardeners are at the mercy of the weather.