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PlantFiles: Goat's Beard
Aruncus dioicus 'Kneiffii'

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Aruncus (arun-kus) (Info)
Species: dioicus (dy-oh-EE-kus) (Info)
Cultivar: Kneiffii

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One member has or wants this plant for trade.


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 7b: to -14.9 C (5 F)

Sun Exposure:
Partial to Full Shade

Seed is poisonous if ingested

Bloom Color:

Bloom Time:
Late Spring/Early Summer
Mid Summer


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
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 seed; direct sow outdoors in fall

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive NancyMcD On May 13, 2012, NancyMcD from Grand Marais, MI wrote:

This is one of my favorite plants, too. All positive traits, no negatives. Pretty before, during, and after bloom. Will grow in dry shade. Nothing seems to bother it, including deer. Seeds itself just enough that I can keep up with requests from other gardeners. Rock-solid hardy here in the far north. Highly recommended.

Positive gardenlady123 On Sep 28, 2008, gardenlady123 from Plainwell, MI (Zone 5b) wrote:

This is one of my favorite plants! Very striking in the early summer. The plume is very white. It lasts for quite a while. Mine is getting rather large, and tall.


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

Newtown, Connecticut
Plainfield, Illinois
Grand Marais, Michigan
Plainwell, Michigan
International Falls, Minnesota
Isle, Minnesota
Elizabeth City, North Carolina
Tangent, Oregon
Norristown, Pennsylvania
Racine, Wisconsin

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