Bigleaf Hydrangea, French Hydrangea, Mophead
Hydrangeamacrophylla 'Nikko Blue'

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee)
Genus: Hydrangea (hy-DRAIN-juh)
Species: macrophylla (mak-roh-FIL-uh)
Cultivar: Nikko Blue

Height

36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing

36-48 in. (90-120 cm)

Hardiness

USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Sun Exposure

Sun to Partial Shade

Danger

Parts of plant are poisonous if ingested

Bloom Color

Dark Blue

Bloom Time

Late Spring/Early Summer
Mid Summer

Foliage

Deciduous

Other details

Unknown

Propagation Methods

From softwood cuttings
From semi-hardwood cuttings

Seed Collecting

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Soil pH requirements

5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information

Non-patented

Foliage Color

Unknown

Bloom Characteristics

Unknown

Water Requirements

Average Water Needs; Water regularly; do not overwater

Where to Grow

Unknown