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Bigleaf Hydrangea, French Hydrangea, Mophead 'Big Daddy'

Hydrangea macrophylla

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: macrophylla (mak-roh-FIL-uh) (Info)
Cultivar: Big Daddy
Additional cultivar information:(PP14527)
Hybridized by Johnson
Registered or introduced: 2002
» View all varieties of Hydrangeas


36-48 in. (90-120 cm)


4-6 ft. (1.2-1.8 m)


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


Parts of plant are poisonous if ingested

Bloom Color:


Medium Blue

Bloom Time:

Mid Summer

Late Summer/Early Fall

Mid Fall



This plant is resistant to deer

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From herbaceous stem cuttings

From softwood cuttings

By simple layering

Seed Collecting:

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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are good for cutting

Flowers are good for drying and preserving

Water Requirements:

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

Where to Grow:

Unknown - Tell us


This plant has been said to grow in the following regions:

Mentone, Alabama

Long Beach, California

San Pedro, California

Buford, Georgia

Lawrenceville, Georgia

Normal, Illinois

New Orleans, Louisiana

Dearborn Heights, Michigan

Derry, New Hampshire

Port Washington, New York

Southold, New York

Waterford, New York

Winnsboro, South Carolina

South Milwaukee, Wisconsin

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Gardeners' Notes:


On Jun 7, 2015, SpringwoodGrdns from Penn Hills, PA wrote:

Plant does not bloom on new wood as some ads for the Southern Living Collection have claimed. It's only as bud-hardy as 99% of its cousins, so winter protection is recommended. Moderate grower achieving about 3 feet in one season. The glossier-than-normal leaves are somewhat attractive, but their shape is nothing to write home about.


On Dec 3, 2004, lmelling from Ithaca, NY (Zone 5b) wrote:

In "Hydrangeas for American Gardens," by Michael A. Dirr (2004), it says that this cultivar grows 5'-6' high with thick stems and glossy thick large leaves that have a yellow fall color. Flowers are 8" to 12" across with thin sepals. Pink in alkaline, blue in acid soils. No hardiness zone information.

Dirr says this might be a seedling of 'Otaksa'.