Summary: Guests: Bruce and Erika Horigan of Horigan Urban Forest Products, Inc., Roy Diblik of Northwind Perennial Farm, and a special appearance in the second hour by arborist Guy Sternberg of Starhill Forest Arboretum. In a completely non-horticultural related appearance, Mike's holiday caroling group, The Frozen Robins take over most of the second hour with their warbling and improvisation.
