Dear Master Gardener: What kind of nut trees can we grow in northern Minnesota? Can we grow black walnuts? Answer: Hazelnuts are hardy in northern Minnesota (zone 3). The hazelnuts you find in the can ...

Every hardiness zone is separated by a 10 degree Fahrenheit difference, with Zone 1 being the coldest and Zone 13 the hottest. Hardiness zones are a handy filter to help you determine if a chosen tree ...