I met people in Wisconsin who grow Musa basjoo so you have a good chance. Cutting while green is preferable as it is easier to cut and deal with. I hack mine back to the ground and compost them. I dump a couple of feet of shredded fall leaves all around the area. Sometimes I put a lattice or some sticks over the leaf humps so wind doesn't take the leaves. My growing zones are shown. My Musa basjoo have been in ground now for about 4.5 years. I'll try to dig up some pics and post. The ones at the front of the house grow well and get the bulk of sun exposure. In the back, they're at the NE corner of the house but the downspout water is delivered directly to them and they're twice as large.
