The Best Concentrate Weed Killers of 2023

Roundup Super Concentrate Weed & Grass Killer is a great value for large areas

Rainproof in 30 minutes

Weeds usually yellow and wilt as fast as 2-4 days

For use around flowers, shrubs, and trees; on patios, walkways, driveways, gravel areas, and mulch beds; along fences and foundations; in large areas for lawn replacements or garden plot preparation

Easily apply with a Roundup brand tank sprayer

Kills and prevents weeds for up to 12 months by creating an invisible barrier in the soil

Kills weeds to the root. Guaranteed! (Consumer Guarantee: If for any reason you are not satisfied after using this product, simply send us original proof of purchase and we will refund the purchase price.)

Use on driveways, patios, sidewalks and gravel areas

Rainproof in 30 minutes

Visible results in 12 hours

Not sold in NY

Weed killer controls grasses, broadleaf weeds and woody brush species. Do not use on lawns.

Weed killer controls grasses, broadleaf weeds and woody brush species. Do not use on lawns.

Contains a double-surfactant formulation that dries on plant fast to start working quickly.

Allows you to cover and treat large areas. 1 gal. covers up to 25,600 sq ft.

1 gal bottle of weed control liquid concentrate can treat up to 25,600 square feet.

See label for application instruction. Spraying accessory required for application.

Weed killer controls grasses, broadleaf weeds and woody brush species. Do not use on lawns.

Weed killer controls grasses, broadleaf weeds and woody brush species. Do not use on lawns.

Contains a double-surfactant formulation that dries on plant fast to start working quickly.

Allows you to cover and treat large areas. 32 oz. covers up to 6,400 sq ft.

32 oz bottle of weed control liquid concentrate can treat up to 6,400 square feet.

See label for application instruction. Spraying accessory required for application.

Country Of Origin: United States

Model Number: 82004319

Item Package Dimensions: 10.0" L x 15.25" W x 12.0" H

Item Package Weight: 35.0 lb

Ortho GroundClear Year Long Vegetation Killer1 is a concentrate formula that kills weeds and prevents any re-growth for up to 1 year with a single application

Fast-acting formula starts working immediately

Starts to kill weeds and grasses in 3 hours

Kills tough weeds to the root when used as directed

Apply with a tank sprayer to driveways, sidewalks, gravel areas, rock and desert landscapes, under decks, on parking areas, and along fences and curbs (packaging may vary)

Kill all types of weeds and grasses, including crabgrass, dandelion, nutsedge, and oxalis, with Ortho GroundClear Weed & Grass Killer Super Concentrate

Quick kill formula starts working immediately

Weed and grass killer kills weeds to the root

Rainfast in 15 minutes

Apply with a tank sprayer around landscape areas, patios, walkways, and driveways

Selective Broadleaf Weed Control

For use in pastures & rangeland, lawns, golf courses, cemeteries, parks,& similar ornamental turf.

Kills tough weeds and grasses to the root

Rainproof in 30 minutes

FastAct Technology - visible results in as fast as 9 hours

For use around flowers, shrubs, and trees; on patios, walkways, driveways, gravel areas, and mulch beds; along fences and foundations; in large areas for lawn replacements or garden plot preparation

Apply with a Roundup brand tank sprayer

Use Ortho WeedClear Weed Killer for Lawns Concentrate to kill weeds down to the root, without harming your lawn (when used as directed); you'll see visible results in hours

KILLS WEEDS: This lawn weed killer kills over 250 common weeds, including dandelions, clover, poison ivy, sumac, chickweed, and dollarweed (see product label for complete weed list)

LAWN FRIENDLY: It contains three proven ingredients that target common lawn weeds, so it won’t harm your grass (when used as directed)

RESULTS YOU CAN SEE: Absorbs on contact to deliver visible results in hours; rainproof in 1 hour upon drying; people and pets may enter the treated area after the spray has dried

EASY TO USE: This concentrated formula can be easily applied with an Ortho Dial N Spray or tank sprayer; it treats up to 16,000 sq. ft.