On today’s 15 with the Author, Teri Knight has a special guest. Former Northfielder, Mary Schier on her book, “The Northern Gardener – from apples to zinnias, 150 years of garden wisdom”. Mary is the Editor of Northern Gardener magazine (Teri’s FAVORITE) published by the Minnesota Horticulture Society. They discuss the unique challenges of northern gardening, the history behind Northern Gardener magazine and much more. This is a must buy for the gardener in your life.