Panicle Hydrangea, Tree Hydrangea 'Pink Diamond'

Hydrangea paniculata

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: paniculata (pan-ick-yoo-LAY-tuh) (Info)
Cultivar: Pink Diamond
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6-8 ft. (1.8-2.4 m)


8-10 ft. (2.4-3 m)


USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

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)

Sun Exposure:

Sun to Partial Shade


Parts of plant are poisonous if ingested

Bloom Color:


White/Near White

Bloom Time:

Mid Summer

Late Summer/Early Fall

Mid Fall



Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


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

San Francisco, California

Easton, Connecticut

Canton, Illinois

Plainfield, Illinois

Winnetka, Illinois

Indianapolis, Indiana

Delhi, Iowa

Smiths Grove, Kentucky

, Manitoba

Gaithersburg, Maryland

Saline, Michigan

Traverse City, Michigan

Saint Cloud, Minnesota

Cicero, New York

Southold, New York

Staten Island, New York

Mansfield, Ohio

Norristown, Pennsylvania

Sarver, Pennsylvania

North Augusta, South Carolina

Memphis, Tennessee

Middleton, Tennessee

Hedgesville, West Virginia

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Gardeners' Notes:


On Dec 4, 2004, lmelling from Ithaca, NY (Zone 5b) wrote:

Information from both "Hydrangeas for American Gardens," by Michael A. Dirr (2004) and "Encyclopedia of Hydrangeas" C.J. and D.M. Van Gelderen (2004 - Timber Press).

A vigorous-growing shrub exceeding 10' high and wide at maturity, similar to 'Unique' and is a seedling of that cultivar. The panicles are long and narrowly cone shaped with few ray-flowers, white turning to dark pink. Considered good for drying.


On Jan 20, 2003, lupinelover from Grove City, OH (Zone 6a) wrote:

The airy panicles open cream, then age deep rose colored.