Yard Answers › weed control
How do I get rid of crabgrass?
Quick answer
Prevent crabgrass with a pre-emergent applied in early spring when soil reaches about 55°F (around forsythia bloom). For crabgrass already growing, spot-treat young plants with a quinclorac weed killer or pull them by the root before they drop seed.
Step by step
- 1Apply pre-emergent in early spring
- 2Mow tall (3–4 in) to shade out seeds
- 3Spot-treat or hand-pull active plants
- 4Overseed thin areas in fall
Gear that helps
3-in-1 Soil pH & Moisture MeterTest before you fertilize — the first step for yellow or patchy grass.$10–$20 · View on Amazon 
Stand-Up Weed PullerPulls dandelions root and all — no bending, no sprays.$30–$45 · View on Amazon As an Amazon Associate, My Yard earns from qualifying purchases.
Common questions
When is it too late to put down crabgrass preventer?
Once crabgrass has sprouted (usually late spring), pre-emergent won't work — switch to a post-emergent.
Does vinegar kill crabgrass?
It burns leaves but rarely kills the roots; mature plants usually grow back.
Rather hire a local pro?
Find trusted weed control pros near you — call or text them directly.