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False Spirea, False Goat's Beard 'Montgomery'

Astilbe japonica

Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Astilbe (a-STIL-bee) (Info)
Species: japonica (juh-PON-ih-kuh) (Info)
Cultivar: Montgomery



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Requires consistently moist soil; do not let dry out between waterings

Where to Grow:

Unknown - Tell us


18-24 in. (45-60 cm)


15-18 in. (38-45 cm)


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)

USDA Zone 9a: to -6.6 C (20 F)

Sun Exposure:

Partial to Full Shade



Bloom Color:


Scarlet (Dark Red)

Bloom Time:

Late Spring/Early Summer



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:


Propagation Methods:

By dividing the rootball

Seed Collecting:

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


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

Jamaica Plain, Massachusetts

Grand Rapids, Michigan

Royal Oak, Michigan

Saint Paul, Minnesota

Cicero, New York

Greene, New York

North Ridgeville, Ohio

show all

Gardeners' Notes:

No details have been posted.