Northeastern United States, Mid-Atlantic United States, Southeastern United States, Canada
China, Indonesia, Japan, Korea, The Hiamalayas
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21