Nikko Blue bigleaf hydrangea
Hydrangea macrophylla 'Nikko Blue'
USDA zones6 to 9
SunHandles partial sun to full shade
WaterHandles moderate to wet soil
Size4 to 6 feet tall4 to 6 feet wide
- Growth rate
- Rapid
- Habit
- Mounding
- Bloom season
- Summer
- Bloom color
- Blue
- Foliage color
- Green
- Soil types
- Sand, loam, clay
- Soil pH
- Acidic for blue flowers (pH 4.5-5.5)
- Toxicity
- Toxic to dogs, toxic to cats, toxic to horses
Garden uses
Notes
'Nikko Blue' bigleaf hydrangea (Hydrangea macrophylla 'Nikko Blue') is a shrub for borders, cut flowers, containers, and foundation plantings. It is hardy to USDA zone 6, or down to -10°F (-23°C). This plant likes part sun to full shade and average to wet, sandy, loamy, or clay soil. Blue flowers open from early to late summer. It is not a favorite of deer, though hungry deer will eat almost anything. Acidic soil with a pH of 4.5 to 5.5 keeps the blooms blue.
Pairs well with Siebold's hosta, Astilbe, and Autumn fern.