Ambrosia psilostachya
Western Ragweed is a tough native perennial grass-companion herb with deeply lobed grey-green foliage. While its wind-blown spring pollen is familiar to allergy sufferers, its extensive root system binds dry pasture soils, and its oil-rich autumn seeds are a crucial winter survival food for Northern Bobwhites and native sparrows.
Height: 1-3 ft.
Spread: 2-5 ft.
Foliage: Deciduous
Growth Rate: Moderate
Water Need: Low
Sun Need: Part Sun, Full Sun
Substrate / Soil: Limestone, Loam, Gravelly
Bloom Season: Aug, Sep, Oct, Nov
This species serves as an essential host plant for caterpillar larvae of: Bordered Patch, Painted Lady.
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