American Wood Anemone, Nightcaps, Windflower
Anemone quinquefolia

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Anemone (uh-NEM-oh-nee) (Info)
Species: quinquefolia (kwin-kway-FOH-lee-uh) (Info)

Category:

Perennials

Height:

6-12 in. (15-30 cm)

Spacing:

6-9 in. (15-22 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:

Partial to Full Shade

Danger:

All parts of plant are poisonous if ingested

Bloom Color:

White/Near White

Bloom Time:

Mid Spring

Foliage:

Herbaceous

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

4.6 to 5.0 (highly acidic)

5.1 to 5.5 (strongly acidic)

5.6 to 6.0 (acidic)

Patent Information:

Non-patented

Propagation Methods:

By dividing the rootball

Seed Collecting:

Unknown - Tell us

Regional

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

Oakland, Maryland

Bridgewater, Massachusetts

Bark River, Michigan

Erie, Michigan

Sanford, Michigan

Minneapolis, Minnesota

Tilton, New Hampshire

Norristown, Pennsylvania

Wilkes Barre, Pennsylvania

Seattle, Washington

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Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Positive

On Mar 7, 2006, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:

This plant tend to grow through rhizomes. It small status make it easily overlooked compared to other natives. It also is shy about blooming, and won't bloom fully on cloudy days, which is common in spring! Still, they may be nice if planted with other tiny natives like spring beauty, toothwort, etc. If you like to look close , you may notice two forms. The nonblooming (for the present year) tend to be smaller and is more like a palm, with one stalk and a few leaves attached. If the plants is larger, with more leaves it is going to bloom. the bud is drooping and hidden under the leaf at first, becoming erect. The flowers is pure white. I suspect its tiny size and flowers are one of the reason why this plant is not offered more, even in native plant nurseries. I collected it from the wild a... read more

Neutral

On Aug 16, 2002, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

Named after the mythic nymph; used by Victorians and Romans to treat several illnesses. All Anemone contain a minor toxic compound which may act as a local skin irritant.