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Extension

Common Name: Bigleaf Hydrangea
Species Name: Hydrangea macrophylla
Family Name: Hydrangeaceae

 
Plant Facts 
OriginJapan
Sun PreferenceShade
SusceptibilityOver wintering the flower buds is the biggest problem; endless summer produces flowers on old and new wood so it should flower even if flower buds get killed over the winter

ID Characteristics

  • Leaf and Stem Characteristics
    • Plant Height: 6-foot diameter, 6-foot height
    • Leaves: Large, coarsely toothed ovate opposite leaves; leaf margins toothed
 
Habitat/Ecology 
Soil PreferenceMoist, well-drained
USDA Cold Hardiness Zone6
NotesBelow pH 5.5 hydrangeas generally produce blue flowers, above 5.5 pink flowers