Broadleaf Weeds - Range & Pasture - Annual Ragweed
BES-TEX Weed ID Guide · Broadleaf Weeds
Annual Ragweed
Ambrosia artemisiifolia
Summer annual Broadleaf
Common Name
Annual Ragweed
Latin Name
Ambrosia artemisiifolia
Family
Asteraceae
Life Cycle / Type
Summer annual · Broadleaf
What Is It?
Annual ragweed is a summer annual broadleaf weed with deeply divided, fern-like leaves and an upright growth habit. It is a heavy pollen producer and commonly found in thin turf, disturbed soil, and unmanaged areas.
Soil Temperature & Germination
Annual ragweed germinates as soils warm in spring.
55°F
75°F
Above 55°F
Germination begins
Above 75°F
Peak emergence and rapid growth
Decision Question
Is the weed visible above the soil right now?
Why This Weed Comes Back
Missed spring pre-emergent timing
Bare or disturbed soil
Thin or stressed turf
Learn the Basics
A healthy, thick lawn is the best defense against weeds.
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