Crabgrass (2026)
Low, sprawling light-green grass with finger-like seed heads.
Quick answer: Crabgrass is a grassy weed. Pre-emergent herbicide in early spring; dense lawn; proper mowing height.
Your Crabgrass weed card
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Crabgrass
Type
Grassy weed
How to identify
Low, sprawling light-green grass with finger-like seed heads.
Control
Pre-emergent herbicide in early spring; dense lawn; proper mowing height.
In your lawn (California)
This is a grassy weed; a dense cool- or warm-season lawn outcompetes it.
More weeds
Control guidance follows IPM: prevent with density and correct mowing, then spot-treat. Always follow product labels and local rules.