Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, Texas, Canada
Western Europe
Blue Moon, Clouds of Perfume
Pyrus amygdaliformis, Pyrus armeniacifolia, Pyrus bourgaeana
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18