The 5 Best Weed Killers (2021 Review)

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Containing 43% glyphosate, this weed killer covers over 17,000 square feet with its effective spray.

-Has a high concentration
-Can be used for full or spot treatments
-One spray can prevent weeds for up to a year

-Users must wear safety gear during application
-Kills desirable plants if it’s inadvertently sprayed onto them

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This concentrate weed killer is available in multiple sizes and packs and kills both weeds and grasses.

-Rainproof after just 15 minutes
-Shows visual results within three hours
-Effective on driveways, fences, and other surfaces

Best for multiple weed types

-Requires manual dilution
-Can damage lawns

Roundup

All-in-One Weed Killer For Lawns

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With the ability to kill over 250 types of weeds, this herbicide is a powerful, easy-to-use weed killer that won’t damage lawns.

-Rainproof in as little as three hours
-Available with a comfort wand, as a concentrate, or as a ready-to-use spray
-Kills weeds at the root to prevent regrowth

GroundClear Weed & Grass Killer

-Not safe for use around pets
-Sometimes needs to be reapplied to difficult weeds

Best for flower beds

Ortho

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This spray acts on contact to produce results within 15 minutes, making it ideal for quick fixes to flower beds and gardens.

-Rainproof within two hours
-Has a convenient spraying mechanism
-OMRI-listed for organic gardening

-Kills any type of plant it makes contact with
-Doesn’t work well on wet grass

Best natural weed killer

Green Gobbler

Weed & Grass Killer

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This natural weed killer can be used on many surfaces, including pavement and mulch.

-Doesn’t require dilution
-Uses a glyphosate-free formula that’s four times stronger than table vinegar
-Safe for use around pets