“Varieties of the red raspberry, Rubus idaeus, have berries that range in color from red to orange or yellow. The black raspberry is a different species, Rubus occidentalis, with deep black berries and a distinctive flavor profile. Purple raspberries are hybrids between the red and the black.” Excerpted from “What’s Wrong With My Fruit Garden?” by David Deardorff and Kathryn Wadsworth. Timber Press, December, 2013. Click here to pre-order your copy of the book.