Photo by Melody

PlantFiles: False Goat's Beard, Native Astilbe
Astilbe biternata

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Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Astilbe (a-STIL-bee) (Info)
Species: biternata (by-TER-nat-uh) (Info)

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Category:
Perennials

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

Spacing:
24-36 in. (60-90 cm)

Hardiness:
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:
Light Shade
Partial to Full Shade

Danger:
N/A

Bloom Color:
Cream/Tan

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous

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

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

Patent Information:
Non-patented

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive coriaceous On Jun 20, 2014, coriaceous from ROSLINDALE, MA wrote:

Mine grew 6' tall in its second year, and apparently this is common. The foliage is confined to the lower 3', and the huge inflorescence extends 3' above the leaves. It does look a lot like a goatsbeard (Aruncus dioicus).

It blooms here (Boston Z6a) in late June.

Like other astilbes, this species needs consistent moisture and protection from afternoon sun. Hardy to -25F (USDA Z4b).

I wonder if it can be hybridized with Astilbe taquettii...

Neutral smiln32 On Aug 1, 2002, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

Be sure to cut back faded flower stalks. Extra water may be needed in dry periods. Divide after 3-4 years in spring or fall. Astilbe requires a lot of nutrients, so give it some fertilizer at least once per growing season.

Regional...

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

Roslindale, Massachusetts



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