The term “herbal” refers to far more than a soothing tea or tasty spice. An herbal is a book or otherwise codified collection of knowledge about the use of plants for food or medicine. Dating back as far as ancient Egypt, Sumer and China, there are more herbals published every year. On Cultivating Place this week, I’m joined by Stephen Orr, editor-in-chief of Better Homes & Gardens and author of "The New American Herbal," published by Clarkson Potter/Random House in 2014.