Can a mimosa tree survive winter?

Of course, it depends on the severity of your winter. I live in north-central Utah and there are several trees surrounding my area. I had nursery trees survive the winter but to fall victim to my accidental excessive watering. I have started several from seeds collected locally, but the transition to being left out all winter after I permanently planted them has not been successful. The two-year trees die back to the roots each winter. This year I gave up and purchased an older tree with a trunk ranging from 1-1/2 inches to 3/4 inch at the top. The nursery told me to wrap the trunks to minimize the damage from the freeze-thaw cycles we commonly see here throughout the winter. I'm trying determine now just how that should be done. That's what led me to your question. Our winters are rather severe. Winter lows will be down to 0 deg F. More commonly they range between 15-30 deg and daytime highs from 25-45. Hope this helps. Good luck. These are covetted trees and real hummingbird magnets.