Jim Nau is a retired Cultural Advisor and Horticultural Historian to the Ball Horticultural Company, and also author of the Ball Culture Guide. Bill Calkins is a senior editor/digital editor with Ball Publishing. Allison Westbrook has over 15 years of experience in the horticulture industry, a Master of Science in Agriculture, Plant Health from Washington State University, and a Bachelor of Science in Landscape Horticulture and Design from Purdue University. She currently works for Midwest Groundcovers in St. Charles, Illinois.