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Crabgrass Killers

Best Crabgrass Killers

From leading brands and best sellers available on the web.
#1

Winner

Spectracide Weed And Grass Killer C

Spectracide

6%OFF

Spectracide Weed And Grass Killer Concentrate 1 Gallon, Use On Patios, Walkways And Driveways

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#2
Scotts Turf Builder Triple Action1

Scotts

30%OFF

Scotts Turf Builder Triple Action1 - Weed Killer, Crabgrass Preventer, Lawn Fertilizer, 4,000 sq. ft. (2-Pack)

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#3
Roundup Weed & Grass Killer₄ Refill

Roundup

20%OFF

Roundup Weed & Grass Killer₄ Refill, Use in and Around Flower Beds, Trees, Driveways, Walkways & More, 1.25 gal.

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#4
Scotts Halts Crabgrass & Grassy Wee

Scotts

Scotts Halts Crabgrass & Grassy Weed Preventer, Pre-Emergent Weed Killer for Lawns, 10,000 sq. ft., 20.12 lbs.

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#5
Roundup Dual Action Weed & Grass Ki

Roundup

17%OFF

Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer with Sure Shot Wand, 1 gal.

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Related Products

Up to 38% off

#6
Ortho WeedClear Lawn Weed Killer Re

Ortho

10%OFF

Ortho WeedClear Lawn Weed Killer Ready-To-Spray, Kills Crabgrass, Dandelion and Clover, 32 oz.

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#7
BASF Drive XLR8 Crabgrass Killer fo

BASF

12%OFF

BASF Drive XLR8 Crabgrass Killer for Lawn & Turf, Post Emergent Grassy & Broadleaf Weed Control, Active Ingredient Quinclorac, 30 Day Residual, Herbicide, Concentrate 64 Ounce

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#8
Ortho WeedClear Lawn Weed Killer Co

Ortho

8%OFF

Ortho WeedClear Lawn Weed Killer Concentrate, Kills Crabgrass, Dandelion and Clover, 32 fl. oz.

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#9
Ortho GroundClear Weed and Grass Ki

Ortho

16%OFF

Ortho GroundClear Weed and Grass Killer Refill, Kills Dandelions, Chickweed, Crabgrass, Moss and More in Patios and Landscapes, OMRI Listed, 1 gal.

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#10
Spectracide Weed Stop For Lawns Plu

Spectracide

Spectracide Weed Stop For Lawns Plus Crabgrass Preventer Granules 10.8 Pounds, Up To 5 Months Of Control, set of 2.

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Buying Guide for the Best Crabgrass Killers

Choosing the right crabgrass killer can make lawn care much easier and keep your grass healthy and attractive. The main thing to understand is that different products work in different ways, some prevent crabgrass before it grows, while others kill it after it appears. By focusing on a few key specifications, you can select a crabgrass killer that fits your lawn's needs and your approach to lawn maintenance.
Type (Pre-Emergent vs Post-Emergent)This refers to whether the product stops crabgrass seeds from sprouting (pre-emergent) or kills existing crabgrass plants (post-emergent). Pre-emergents are useful if you want to stop crabgrass before you see it; these are best applied in early spring before weeds are visible. Post-emergents are for when crabgrass is already growing and needs to be dealt with after the fact, usually in late spring or summer. Choose based on whether you're preventing or reacting to the problem.
Application MethodCrabgrass killers are available as granules, liquids, or ready-to-use sprays. Granules are spread over the lawn and watered in, making them good for large areas and even coverage. Liquids or sprays are targeted and can be more precise, ideal if you have spotty crabgrass patches. Consider how you like to apply products—granules for broad use, liquids for targeted action—and which is more manageable for your lawn size.
Selective vs Non-Selective ActionSelective products target crabgrass and certain weeds without harming most common grasses, while non-selective products kill most plants they touch, including your lawn grass. If you want to keep your lawn green and only eliminate crabgrass, always look for selective formulas. Non-selective options might only be suitable for areas where you want to kill everything, such as cracks in pavement.
Active IngredientThe active ingredient determines both the effectiveness and safety of the product for your lawn. Common pre-emergent ingredients include dithiopyr and pendimethalin, while post-emergents often contain quinclorac. Some grasses tolerate certain chemicals better than others, so check which are recommended for your grass type. Matching the active ingredient to your grass ensures the crabgrass is targeted but your lawn stays healthy.
Coverage AreaThis tells you how much lawn can be treated with each product container, often listed in square feet. Products come sized for small yards to large lawns. Assess your lawn area and compare that to the product coverage to avoid running out or over-applying. Pick a size that allows complete, even coverage of your problem area.
Safety and Environmental ImpactSome crabgrass killers can be harmful to pets, children, or beneficial insects if not used properly. A product with lower toxicity or organic certification may be better if you have kids, pets, or wildlife frequenting your yard. Always check the safety instructions and consider your household’s needs to pick a product that keeps everyone safe.