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Rio Grande ragweed

Ambrosiacheiranthifolia

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Family

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

Info

Genus

Ambrosia (am-BRO-zhuh)

Info

Species

cheiranthifolia (kye-ranth-ih-FOH-lee-a)

Info

Synonym

Sun Exposure

Full Sun

Foliage

Unknown - Tell us

Height

24-36 in. (60-90 cm)

Spacing

24-36 in. (60-90 cm)

Hardiness

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)

USDA Zone 10a: to -1.1 °C (30 °F)

USDA Zone 10b: to 1.7 °C (35 °F)

Danger

Handling plant may cause skin irritation or allergic reaction

Bloom Color

Unknown - Tell us

Bloom Time

Late Spring/Early Summer

Mid Summer

Other Details

Gardener's Notes:

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positive

neutral

negative

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frostweed

Josephine, Arlington, TX (Zone 8a) | November 2006 | neutral

Rio Grande ragweed Ambrosia cheiranthifolia is Endemic to Texas and is now classified as an Endangered plant.

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Rio Grande ragweed

Ambrosiacheiranthifolia

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