Panicle Hydrangea, Tree Hydrangea 'Ruby'

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: Ruby
Additional cultivar information:(PP10751, aka Angel's Blush)
Hybridized by De Belder
Registered or introduced: 1997
» View all varieties of Hydrangeas

Height:

8-10 ft. (2.4-3 m)

Spacing:

4-6 ft. (1.2-1.8 m)

Hardiness:

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

Foliage:

Deciduous

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:

Patented

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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are good for drying and preserving

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

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 medium-sized shrub up to 10 feet, which is a seedling of 'Pink Diamond'. The flowerheads appear early in the season, white at first rapidly changing to pink, later turning to almost claret-red when mature. The flowering period is long, sometimes 10 weeks. This cultivar is very rare outside of the U.S. Trademarked name is ANGEL(S) BLUSH.

Dirr writes that he has grown 'Ruby' for several years in his garden and that he feels it is a weak shrub with rather insignificant flowers that has yet to live up to the description above.

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