Bigleaf Hydrangea, French Hydrangea, Mophead
Hydrangeamacrophylla 'David Ramsey'

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

Height

36-48 in. (90-120 cm)

Spacing

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

Hardiness

USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
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

Pink
Dark Blue

Bloom Time

Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall

Foliage

Deciduous

Other details

Unknown

Propagation Methods

From herbaceous stem cuttings
From woody stem cuttings
From softwood cuttings
From semi-hardwood cuttings
From hardwood cuttings

Seed Collecting

Unknown

Soil pH requirements

5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information

Unknown

Foliage Color

Unknown

Bloom Characteristics

Flowers are good for cutting
Flowers are good for drying and preserving
This plant is attractive to bees, butterflies and/or birds

Water Requirements

Requires consistently moist soil; do not let dry out between waterings

Where to Grow

Unknown