Oakleaf Hydrangea 'Harmony'

Hydrangea quercifolia

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: quercifolia (kwer-se-FOH-lee-uh) (Info)
Cultivar: Harmony
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6-8 ft. (1.8-2.4 m)

8-10 ft. (2.4-3 m)


4-6 ft. (1.2-1.8 m)


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)

Sun Exposure:

Sun to Partial Shade


Unknown - Tell us

Bloom Color:

White/Near White

Bloom Time:

Late Spring/Early Summer



Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


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

Helena, Alabama

Newport Beach, California

Palmetto, Georgia

Tyler, Texas

Gardeners' Notes:


On Dec 5, 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).

Experts conflict on actual height. Van Gelderen puts this shrub at 5 feet, while Professor Dirr sets the height at up to 10 feet.

This is a free-flowering shrub with mostly sterile, large panicles up to 12" long and 8" wide, which are rather lumpy and bumpy looking, but beautiful, reminescent of H. paniculata 'Grandiflora' in their appearance, and will develop a pink tinge with age. Panicles will weigh down branches and may possibly require staking.

Originally found by Th. A. McDaniel, father of plantsman J.C. McDaniel, in a churchyard in Alabama before 1985.