Bigleaf Hydrangea, French Hydrangea, Mophead
Hydrangea macrophylla 'Mme Emile Mouillere'

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: macrophylla (mak-roh-FIL-uh) (Info)
Cultivar: Mme Emile Mouillere
Additional cultivar information:(aka Sedgewick's White)
» View all varieties of Hydrangeas

Height:

36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)

Spacing:

4-6 ft. (1.2-1.8 m)

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:

White/Near White

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Deciduous

Other details:

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

Flowers are good for drying and preserving

Provides winter interest

Suitable for growing in containers

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)

Patent Information:

Non-patented

Propagation Methods:

From herbaceous stem cuttings

From softwood cuttings

From semi-hardwood cuttings

By simple layering

Seed Collecting:

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

Regional

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

Los Altos, California

Loganville, Georgia

Norcross, Georgia

Nacogdoches, Texas

Olympia, Washington

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Dec 2, 2004, lmelling from Ithaca, NY (Zone 5b) wrote:

According to the authors of "Encyclopedia of Hydrangeas" C.J. and D.M. Van Gelderen (2004 - Timber Press), "A vigorous growing shrub up to 6.5' high and wide. Branches are weak, so plants are often untidy. Flowerheads are numerous, of medium size, with sepals packed together, pure white, serrrate, fading to light pink, and long lasting. Flowering occurs in June. This may be the best known white cultivar.

Other information: cold resistant; foliage turns red, orange and green in autumn.