I was driving through Medford, MA (a few towns north of Boston) today and saw what looked like a couple of arborvitae wrapped up in burlap... When I got closer it was clear that were wrapped with insulated blankets, not burlap.
A google street view search revealed them to be fairly sizable fig trees! It looks like they made it through last winter relatively undamaged (the street view pic was from June 2015)! This area is a solid zone 6b.