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False Spirea, False Goat's Beard
Astilbe x arendsii 'Radius'

Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Astilbe (a-STIL-bee) (Info)
Species: x arendsii (ar-END-see-eye) (Info)
Cultivar: Radius

Category:

Perennials

Height:

24-36 in. (60-90 cm)

Spacing:

15-18 in. (38-45 cm)

Hardiness:

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 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)

Sun Exposure:

Sun to Partial Shade

Light Shade

Danger:

Unknown - Tell us

Bloom Color:

Red

Bloom Time:

Mid Summer

Foliage:

Grown for foliage

Herbaceous

Burgundy

Bronze-Green

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

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

Regional

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

Sterling, Virginia

Kalama, Washington

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Mar 22, 2010, Snug_As_Bug_Rug from Sterling, VA (Zone 7a) wrote:

This plant survived our terrible 2010 snow blizzards here in VA. I have to commend its ability to survive such a harsh winter!! Snug.