There are 3 species that are native to your area that I am aware of. Sarracenia purpurea, Drosera rotundifolia, and untricularia vulgaris. I got to see all of these species growing wild in the BWCA in Ely MN. While the Utric is aquatic, the other 2 would do quite well in a bog garden. you may also wish to post to the Carnivorous plant forum, others may know of different plants that could survive your winters.

They do find,but when temperture get blow 35 F,you have to cover the plants with mulch,even pine nettles or oak leaves.

try a water sundew native to your area. these plants are very winter hardy, as long as you get the right variety. One type can stand temperatures at 50 degrees (F) below zero!

Good luck!