Photo by Melody

PlantFiles: Panicle Hydrangea, Tree Hydrangea
Hydrangea paniculata 'Webb'

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Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: paniculata (pan-ick-yoo-LAY-tuh) (Info)
Cultivar: Webb

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Height:
Unknown - Tell us

Spacing:
Unknown - Tell us

Hardiness:
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

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:
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Flowers are good for drying and preserving

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:
From softwood cuttings

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

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Thumbnail #1 of Hydrangea paniculata by shimer

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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive lmelling 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).

'Webb' is described as an improvement of 'Grandiflora' with primarily sterile flowers and a uniform, broad-conical head. Flowers are pure white and age to purplish-pink. This cultivar flowers later with green buds just starting to emerge in early July.

Neither author gives height, width, nor length of the panicles. Dirr goes on to say that the panicles are heavy and do initiate branch sway. Origin is the U.S. selected by J.A. Webb of Huntsville, AL

For several years I have been taking bouquets of an h. paniculata that I believe to be a 'Webb'. If so, this has been trained into tree form and is approximately 15' high and perhaps 12' wide. The huge mostly sterile panicles that I cut each year age to cream with touches of purplish-pink and green undertones as they age. They are quite beautiful and remain so for about a year after being cut.

Regional...

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

Marietta, Georgia



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