How to Get Rid of Crabgrass Before It Takes Over

Crabgrass is an annual weed that fills every gap your lawn leaves open. It germinates when soil warms in spring, spreads fast in summer stress, then dies with frost — leaving bare patches ready for next year’s seeds.

The winning approach is prevention plus thicker turf. A well-timed pre-emergent in spring stops new seedlings, while proper mowing height, feeding, and overseeding close the gaps crabgrass loves. Spot-treating mature plants helps, but it rarely fixes a lawn that stays thin and stressed.

If crabgrass comes back every year in the same areas, the real issue is usually compaction, poor coverage, or irrigation that runs too shallow. A lawn care program that pairs weed control with soil and seeding work usually outperforms weekend catch-up.