Special thanks must be given to several persons who lent their considerable experience; much of their verbal communication was synthesized in this publication.

Marie Caillet of Dallas

Rosa Finsley of Kings Creek Nursery in Cedar Hill

Dr. W. Clyde Ikins of Lakeside Gardens, Bandera, Texas

Dr. Kirk Strawn of College Station, Texas

Bob Webster of Shades of Green Nursery in San Antonio, Texas.