Don Engebretson, a.k.a., The Renegade Gardener, calls himself “the lone voice of horticultural reason.” That may be a bit of an overstatement, but Don — who also writes Northern Gardener’s…

Some plants are like the popular kids in high school, says garden designer Andrew Keys in his new book, Why Grow THAT When You Can Grow This: 255 Extraordinary Alternatives…