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PlantFiles: Mountain Hydrangea
Hydrangea serrata 'Beni Gaku'

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: serrata (sair-AY-tuh) (Info)
Cultivar: Beni Gaku
Additional cultivar information: (aka Benigaku, Rosalba)

» View all varieties of Hydrangeas

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24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

24-36 in. (60-90 cm)

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

Unknown - Tell us

Bloom Color:
Magenta (Pink-Purple)

Bloom Time:
Mid Summer
Late Summer/Early Fall


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

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By DreamOfSpring
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There are a total of 15 photos.
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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive felicia014 On Aug 26, 2007, felicia014 from Ridgefield, CT wrote:

The lacecaps start out blue, blooms change to a variety of colors (right now they are rosy pink, nearly red). Beautiful leaf color in fall. Very little browsing problems with my troublesome deer. I have two of these in my side garden now, but plan to move them this fall to my front bed to fill some gaps and let everyone enjoy them!

Positive DreamOfSpring On Jun 6, 2005, DreamOfSpring from Charleston, SC (Zone 9a) wrote:

Flower color is quite variable. Mine are in their 2nd year. The 1st year I was VERY disappointed because the blooms were just a very pale lavendar. But this year...WOW!!! I have pale pink, bright pink, sky blue, lavendar, etc all on the same plant! So if you plant this one and get boring blooms the 1st year, be patient.


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

Mentone, Alabama
Ridgefield, Connecticut
Cambridge, Massachusetts
Southold, New York
Emerald Isle, North Carolina
Albany, Oregon
Portland, Oregon
Salem, Oregon
Charleston, South Carolina
North Augusta, South Carolina
Arlington, Tennessee
Memphis, Tennessee
Lexington, Virginia
Kirkland, Washington

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