Japanese Spirea, Japanese Meadowsweet, Maybush 'Alpina'

Spiraeajaponica

Family
Rosaceae (ro-ZAY-see-ee)
Genus
Spiraea (spy-REE-ah)
Species
japonica (juh-PON-ih-kuh)
Synonym
Spiraea japonica var. alpina
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Height
18-24 in. (45-60 cm)
Spacing
36-48 in. (90-120 cm)
Hardiness
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)
USDA Zone 8b: to -9.4 °C (15 °F)
Bloom Color
Pale Pink
Pink
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Shrubs
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
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
Propagation Methods
By dividing the rootball
From softwood cuttings
From hardwood cuttings
By simple layering
By stooling or mound layering
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Aurora, Illinois

Greenville, Indiana

Saint Cloud, Minnesota

Croton On Hudson, New York

West Chester, Pennsylvania

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Gardener's Notes:

2
positives
1
neutral
0
negative
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R
Downingtown, PA | August 2015 | positive

This Alpine Japanese Spirea is a natural variety of Japanese Spirea that is shorter with smaller leaves and bright pink flower clusters. ...Read More

M
Croton-on-Hudson, NY (Zone 6b) | August 2009 | positive

Our Alpina was a mature plant when we moved to this house 15 years ago. It has never grown over 15 inches tall. I do find new spirea in o...Read More

T
Mercer, PA (Zone 5a) | October 2004 | neutral

This plant is very adaptable to many soil types. All spireas all have small leaves and fine, twiggy branches and this one is no differen...Read More

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