Quote[/b] (Glenn @ July 26 2005,11:30)]I also live in Michigan. I grow my natives outdoors during the summer and move them in for the winter. Will your bog garden be in the ground? You say containerized so I am assuming it will be above ground. If so, I think you will be taking your chances leaving the plants outdoors since they will be freezing solid and will be subjected to the cold drying winter winds. If you are putting it in the ground, I am guessing you should be just fine with MI natives. I had some U. macrorhiza make it through the winter in my water garden which freezes solid! I took most of them indoors for the winter.
The problem with overwintering indoors is the plants break dormancy sooner than I would like. I have started moving them outside sooner but I lost a few drosera due to frost.
Hope this helps.
Glenn