I was on Paul Douglas’ weather blog last night and saw that he pointed out the new zone maps for the US.   It indicates that a part of the metro area is officially zone 5.  This means that this area will not see a temp below -20.  Do you believe it?  I don’t.  Even though this winter has been unique we are in Minnesota and it is bound to get brutally cold again.  Plant those Japanese Maples with caution.  A warm nook is still the way I would plan!