There are a TON of bananas for Michigan! Michigan is one of the best zone 6/5 places to grow them! Here is a list of things that have been reported to grow in zone 6. If there's any zone 6 for nanners it's Michigan!
List
Musa Basjoo
Musa Basjoo 'Sakhalin'
Musa Sikkimensis
Musa Sikkimensis "Daj Giant"
Musa Sikkimensis "red tiger"
Musa Itinerans
Musa Itinerans 'Gigantea'
Musa Yunnanensis
Musa tibet
Musa Bordelon
Musa velutina
Musa balbisiana
Musa Black Balbisiana
Musella lasiocarpa (not a true banana) Thanx! God Bless! BananaLee