Now that summer-like temperatures have hit the region, today we welcome back a few familiar voices. Bob Graves is a horticulturist and co-owner of Faddegon’s Nursery in Latham, New York. Fred Breglia is director of the Landis Arboretum in Esperance, New York. Greg Ward runs Ward’s Nursery in Great Barrington, Massachusetts. WAMC’s Ray Graf hosts.