Photo by Melody

PlantFiles: Spirea
Spiraea nipponica 'Snowmound'

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Spiraea (spy-REE-ah) (Info)
Species: nipponica (nip-PON-ih-kuh) (Info)
Cultivar: Snowmound

Synonym:Spiraea nipponica var. tosaensis

4 vendors have this plant for sale.

9 members have or want this plant for trade.

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4-6 ft. (1.2-1.8 m)

4-6 ft. (1.2-1.8 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 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer


Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Suitable for growing in containers

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From hardwood 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 Spiraea nipponica by Todd_Boland

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By EffieH
Thumbnail #3 of Spiraea nipponica by EffieH

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There are a total of 10 photos.
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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive EffieH On May 22, 2010, EffieH from Amston, CT (Zone 6b) wrote:

I bought a tiny Japanese shrub in a 3" pot years and years ago at Comstock & Ferre in Wethersfield, CT -- I completely forgot the name of it but now it's huge and gorgeous -- it was a Japanese something or other and after posting a question here at Dave's Garden it was identified as a Spirea Nipponica -- I think it is a snowmound. I've posted a picture of it with this listing. I've never pruned it because I wasn't sure how, and when I did find out how it seemed impossible because the base branches are tightly interwoven -- I might try it sometime when I'm feeling adventurous. This shrub is one of my favorites, it's always gorgeous.

Positive cfarres On Jun 12, 2007, cfarres from Deering, NH (Zone 4b) wrote:

This is a carefree hardy shrub. After 4 years, I have never had a problem with pests or diseases and have never had to lift a finger to maintain it.

When it blooms (in mid June in zone 4b), it seriously looks like a major snowstorm let loose just above the plant; you can barely see the leaves thru the masses of white flowers.


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

Susanville, California
Amston, Connecticut
Glastonbury, Connecticut
Chicago, Illinois
Edwardsville, Illinois
Lebanon, Illinois
Niles, Illinois
Loreto, Massachusetts
Hallam, Nebraska
Hillsboro, New Hampshire
New York City, New York
Ontario, New York
Warwick, New York
Raleigh, North Carolina
Cincinnati, Ohio
Tulsa, Oklahoma
Bend, Oregon
Harrisburg, Pennsylvania
Lansdowne, Pennsylvania
Abilene, Texas
Huffman, Texas
Arlington, Virginia
Milwaukee, Wisconsin

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