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Woollyleaf burr ragweed

Ambrosiagrayi

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Family

Asteraceae (ass-ter-AY-see-ee)

Info

Genus

Ambrosia (am-BRO-zhuh)

Info

Species

grayi (GRAY-eye)

Info

Synonym

Sun Exposure

Full Sun

Foliage

Herbaceous

Height

Unknown - Tell us

Spacing

Unknown - Tell us

Hardiness

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)

USDA Zone 9b: to -3.8 °C (25 °F)

Danger

Unknown - Tell us

Bloom Color

Unknown - Tell us

Bloom Time

Unknown - Tell us

Other Details

Gardener's Notes:

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smiln32

Oklahoma City, OK (Zone 7a) | November 2004 | negative

This plant is considered a noxious weed. It spreads by rhizomes and has an extensive creeping root system. It is found in the central an...Read Mored southern Great Plains of the U.S.

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Woollyleaf burr ragweed

Ambrosiagrayi

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