Big Bur-sage, Canyon Ragweed
Ambrosiaambrosioides

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Ambrosia (am-BRO-zhuh)
Species: ambrosioides (am-bro-zhee-OH-id-eez)

Category
Perennials
Shrubs

Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun
Sun to Partial Shade

Foliage

Foliage Color

Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Spacing
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Hardiness
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)
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow

Danger

Bloom Color
Pale Green
Chartreuse (yellow-green)
Inconspicuous/none

Bloom Characteristics

Bloom Size

Bloom Time
Late Spring/Early Summer

Other details

Soil pH requirements

Patent Information
Non-patented

Propagation Methods

Seed Collecting