Best Weed Killer for Lawns in 2020

Weed Killer Warning! Always read the manufacturer’s recommendations when choosing and applying any chemical herbicides to your lawn or landscape beds. Wear protective gloves and remember that some weed killer applications can kill flowers, grasses, and shrubs.

Transform your lawn into the envy of the neighborhood by killing and preventing those annoying weeds with the best weed killer for lawns in 2020. Whether you’re looking for weed killer for northern or southern lawns, we’ve got you covered.

Welcome to The Weed Wizard, the leading weed control resource for anyone searching for the best weed killer and most effective herbicides for their weed issues. When it comes to lawn and landscape care, we’re here to help with the best, to-the-point guides and weed killer ratings for a healthy landscape. 

With this weed killer for lawn guide, you’ll be on your way to a beautiful lawn and landscape without weeds. The secret to success is applying the right weed killer for lawns at the right time. Here, you’ll learn what your lawn and garden need to look its best with our easy-care guide and ratings. 

killing weeds and not the lawn with best weed killer
Use the best weed killer for lawns so you don’t kill the grass too.

One of the quickest and efficient remedies to manage weed in your lawn is to go with an effective weed killer. The weed killers for lawn mentioned below have active ingredients that help to kill a wide variety of weeds effectively.

These applications, produced by leading weedkiller brands, are not only ideal for making your lawn look its best but also fabulous for killing weeds around driveways and patios and in your garden and flower beds. If you are looking for searching for weed barriers and other preventive weed measures for your northern or southern lawn, please continue to browse this post and our site for all of the best weed killer ratings to suit your needs.

In a hurry? If you don’t have much time to review the whole post, below is a briefing of the top products we recommend. You can rest assured that we only chose the best weed-killing applications.

Top Weed Killers for Lawn Ratings for 2020

Weed Wizard’s Best Overall for Lawn: Ortho WeedClear Lawn Weed Killer Ready-to-Use Trigger Spray

Best Concentrate for Large Lawns: Tenacity

Best for Hard-To-Kill Weeds:  Roundup For Lawns All-In-One Weed Killer for Lawns

Best for Killing Crabgrass in Lawn: Roundup for Lawns Crabgrass Destroyer

Best Crabgrass Granular Weed Preventer: Spectracide Weed Stop for Lawns Plus Crabgrass Preventer

Best Crabgrass Spray-On Weed Preventer: Spectracide Lawn Weed Killer, Ready-to-Use

Best Fertilizer & Weed Killer:  Scotts Turf Builder Weed and Feed

Best Organic Fertilizer and Weed Preventer for Lawn: Espoma Organic Weed Preventer

Best Weed Killer, Lawn Fertilizer, and Weed Preventer in One:  Scotts Turf Builder Triple Action


1. Overall Best for Lawn: Ortho WeedClear Lawn Weed Killer Ready-To-Use

using best weed killer for lawns on backyard
Enjoy a lush backyard with the best weed killers for lawns.

Ortho WeedClear Lawn Weed Killer Ready-To-Use is the best weed killer for a beautiful lawn. Ortho WeedClear Lawn Weed Killer Ready-to-Use Trigger Spray kills the weeds and not your yard when you use it as directed. Among our weed killer ratings for your lawn, this ranks at the top. The fast-acting formula kills 200-plus weeds, including dandelion, chickweed, clover, crabgrass, and foxtail, and is rainproof in just one hour.

All you have to do is remove the sprayer from the bottle and insert the hose connector into the capped spout until it clicks, and then twist the knob to “ON.” Once you turn the nozzle to the desired spray pattern, you can quickly apply to weeds.

The manufacturer recommends applying the product in the spring and fall when weeds are young and actively growing for the best results. For use on grasses, including Bermudagrass, Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass, and Zoysiagrass. Please see the product label for complete instructions.

Ortho WeedClear Lawn Weed Killer Ready-to-Use Trigger Spray Features and Benefits

  • Kill weeds in your lawn, including dandelion, chickweed, clover, crabgrass, and foxtail with the Ortho WeedClear Lawn Weed Killer
  • Fast-acting, with results in one application
  • Kills weeds to the roots but won’t harm the lawn (when used as directed)
  • For use on grasses, including Bermudagrass, Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass, and Zoysiagrass
  • Trigger sprayer makes it easy to spot-treat weeds.
  • Not available in FL, GU, HI, LA
Ortho WeedClear Lawn Weed Killer Ready to Use -...
  • Kill weeds in your lawn, including dandelion, chickweed, clover, crabgrass, and foxtail with the Ortho WeedClear Lawn Weed...
  • Fast-acting, with results in one application
  • Kills weeds to the roots but won't harm the lawn (when used as directed)

Last update on 2020-11-20 / Affiliate links / Images from Amazon Product Advertising API

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2. Best Concentrate for Large Lawns: Tenacity

There are several reasons why the Tenacity weed killer is widely used among homeowners and gardeners. 

For starters, Tenacity is a selective, systemic herbicide that’s capable of providing pre- and post-emergence control of grass and broadleaf weed in many cold- and warm-season turf species, such as riding your rough of bentgrass. Additionally, you can use Tenacity on already-established or newly seeded turf.

The effects of applying Tenacity herbicide also manifest relatively fast. Once absorbed, Tenacity quickly travels throughout the whole plant, and the growth of the target weed is suppressed soon after contact since photosynthesis gets inhibited. From there, it’ll only take about 2 to 3 weeks for the plant to die.

Another impressive aspect of using the Tenacity weed killer is that you can safely tank mix it with other herbicides. These include Barricade®, dicamba, carfentrazone, triclopyr, atrazine, simazine, s-metolachlor, and numerous three-way phenoxy herbicides. 

Such combinations are popular among turf managers as they help broaden the weed control spectrum and enhance the efficiency of weed control compared to single-product applications.

Next Read: A Complete Guide to Tenacity Weed Killer

Sale
Tenacity Turf Herbicide - 8 ounces
  • Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in...
  • When applied as a pre-emergent, weeds absorb Tenacity during emergence from the soil.
  • Target pests: Barnyardgrass, Carpetweed, Chickweed, Clover, Crabgrass (large & smooth), Dandelion, Foxtail, Goosegrass,...

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


3. Best for Hard-To-Kill Weeds:  Roundup For Lawns All-In-One Weed Killer for Lawns

Roundup For Lawns All-In-One is a formula that kills weeds but “not the lawn!” This weed killer for lawns controls over 250 common lawn weeds, roots and all, and is especially useful on hard-to-kill weeds such as crabgrass, dandelion, clover, and yellow nutsedge. 

The Roundup ready-to-use formula with an extendable wand makes it easier than ever to spot-treat lawn weeds without bending over! This fast-acting formula starts killing on contact and kills weeds down to the root, so they don’t come back. Also, Roundup for lawn is rainproof in as little as 3 hours. We believe you’ll find that Roundup For Lawns is a simple step towards a beautiful, weed-free property.

Roundup For Lawns All-In-One Weed Killer for Lawns Features and Benefits

  • Weedkiller with an extended wand to make it easy to spot-treat lawn weeds
  • Kills over 250 weeds, including crabgrass, dandelion, clover, and yellow nutsedge-won’t harm your lawn
  • For use on Northern grasses, including Kentucky bluegrass, perennial ryegrass, fescue, bermudagrass, buffalograss, and zoysiagrass
  • Starts working immediately and rainproof in as little as 3 hours
  • For hard-to-kill summer crabgrass and grassy weeds, use Roundup for Lawns Crabgrass Destroyer.

Next Read: Certainty Herbicide Review & Buyer’s Guide

Sale
Roundup For Lawns1 Ready to Use - All-in-One Weed...
  • Weed killer with an extended wand to make it easy to spot-treat lawn weeds
  • Kills over 250 weeds, including crabgrass, dandelion, clover, and yellow nutsedge-won't harm your lawn
  • Lawn weed killer for use on Northern grasses, including Kentucky bluegrass, perennial ryegrass, fescue, bermudagrass,...

Last update on 2020-11-21 / Affiliate links / Images from Amazon Product Advertising API


4. Best for Killing Crabgrass in Lawn: Roundup for Lawns Crabgrass Destroyer

Roundup for Lawns Crabgrass Destroyer is a specially formulated weed killer that kills even the toughest crabgrass and other grassy weeds, including foxtail and goosegrass, without harming your lawn. The extended comfort wand lets you target hard to reach places with ease, and the unique whitening indicator lets you know it’s working.

Roundup for Lawns Crabgrass Destroyer Features and Benefits

  • Kills the toughest crabgrass and grassy weeds without harming lawns, when used as directed
  • Designed for use on Northern lawns: Kentucky bluegrass, fine fescue, perennial ryegrass, and tall fescue
  • Weeds will turn white 4-7 days after application.
  • Apply any time before seeding, including the day of seeding
  • RoundUp for lawns crabgrass destroyer is tough on weeds but won’t harm your lawn when used as directed.
Roundup for Lawns Crabgrass Destroyer1 - Tough...
  • Kills the toughest crabgrass and grassy weeds without harming lawns (when used as directed)
  • Designed for use on Northern lawns: Kentucky bluegrass, fine fescue, perennial ryegrass and tall fescue
  • Weeds will turn white 4-7 days after application. White means it's working!

Last update on 2020-11-21 / Affiliate links / Images from Amazon Product Advertising API


5. Best Crabgrass Granular Weed Preventer: Spectracide Weed Stop for Lawns Plus Crabgrass Preventer

Spectracide Weed Stop For Lawns Plus Crabgrass Preventer is an easy-to-use, fast-acting product that will control all of your lawn’s weeds in one application. This granular formula will kill over 200 lawn weeds commonly found in home lawns, including dandelion, chickweed, thistle, and clover, and prevent crabgrass and other undesirable annual grasses. 

The product provides up to 5 months of control, and it won’t harm lawns when used as directed. You can apply it any time, spring through fall when weeds are actively growing. 

Spectracide recommends their product for established turfgrasses, including bluegrass, perennial ryegrass, bahiagrass, bermudagrass, buffalograss, centipedegrass, zoysiagrass, and St. Augustinegrass. The ideal time to apply just before or while forsythia is in bloom or when the first dandelion flowers appear in the spring. In southern areas (see the map on the product label), make a second application in six to eight weeks for best weed and crabgrass control. 

In the fall, apply Spectracide Weed Stop For Lawns Plus Crabgrass Preventer when the weather cools, and both grass and weeds are actively growing, generally around Labor Day.

Spectracide Weed Stop for Lawns Plus Crabgrass Preventer

  • Won’t harm lawns when used as directed and kills more than 200 types of weeds as listed
  • Prevents crabgrass and other undesirable annual grasses
  • Apply with a spreader at the rates directed on the product label
  • Apply when weeds are actively growing
  • This 10.8-pound bag covers up to 3,000 square feet of lawn.
Spectracide Weed Stop For Lawns Plus Crabgrass...
  • WON’T HARM LAWNS: Won’t harm lawns when used as directed – kills more than 200 types of weeds as listed.
  • PRE-EMERGENT CRABGRASS KILLER: Prevents crabgrass and other undesirable annual grasses.
  • UP TO 5 MONTHS CONTROL: Apply with a spreader at the rates directed on the product label.

Last update on 2020-11-21 / Affiliate links / Images from Amazon Product Advertising API


6. Best Crabgrass Spray-On Weed Preventer: Spectracide Lawn Weed Killer, Ready-to-Use

best weed killer for lawns prevents weeds
The best weed preventer for lawns works wonders for a lush yard.

Spectracide Weed Stop For Lawns Plus Crabgrass Killer puts an end to weeds in your lawn as it kills over 250 types of weeds, including crabgrass. The product produces visible results in just 8 hours, kills broadleaf and troublesome grass weeds, including dandelion, chickweed, clover, crabgrass, foxtail, and yellow nutsedge. See their product label for a complete list of weed types. 

Apply when daytime temperatures are between 45°F and 90°F and do not apply to Bermudagrass when daytime temperatures exceed 85°F.

Spectracide Weed Stop For Lawns Plus Crabgrass Killer

  • Controls listed weeds, including crabgrass, not the lawn, when used as directed)
  • Controls major broadleaf and troublesome grass weeds, including crabgrass, dandelion, chickweed, and clover, as well as foxtail and yellow nutsedge
  • See product label for a complete list of weed it’ll kill
  • Visible results in 5 hours
  • Rainfall or watering 3 hours after application will not wash away effectiveness.
Spectracide Weed Stop For Lawns Plus Crabgrass...
  • KILLS WEEDS, NOT THE LAWN: Won’t harm lawns when used as directed – kills more than 250 types of weeds as listed.
  • CONTROLS CRABGRASS: Controls major broadleaf and troublesome grass weeds, including crabgrass, dandelion, chickweed and...
  • KILLS THE ROOT: Visible results in 8 hours.

Last update on 2020-11-21 / Affiliate links / Images from Amazon Product Advertising API


7. Best Fertilizer + Weed Killer:  Scotts Turf Builder Weed and Feed

Scotts Turf Builder, Weed & Feed with WeedGrip Technology, will grip the weeds you see and the ones you don’t see for up to two times more powerful dandelion and clover control, all while feeding and thickening your lawn to crowd out weeds. WeedGrip Technology grips the weeds you see and the ones you don’t to make room for healthy, green grass to grow.

Scotts Turf Builder Weed & Feed works double duty as a fertilizer and weed killer to help grow deeper, stronger roots for a thick green lawn, all while crowding out future weeds.

Scotts Turf Builder Weed & Feed Features and Benefits

  • Up to two times more powerful dandelion and clover control vs. their previous formula
  • Clears out dandelions and clover and comes with satisfaction guaranteed by the manufacturer
  • Weedgrip Technology grips the weeds you see, and the ones you don’t
  • This is Scotts most powerful weed and feed.
  • Feeds to thicken lawns and crowd out weeds
Scotts Turf Builder Weed and Feed 3, 5,000 Sq. Ft.
  • Up to 2X more powerful dandelion and clover control (vs. previous formula)
  • Clears out dandelions and clover—satisfaction guaranteed
  • Weedgrip technology grips the weeds you see—and the ones you don't

Last update on 2020-11-20 / Affiliate links / Images from Amazon Product Advertising API


8. Best Organic Fertilizer and Weed Preventer for Lawn: Espoma Organic Weed Preventer

best pet friendly weed killer for lawns
Consider the best natural weed killer for lawns for a pet-safe application.

Espoma Organic Weed Preventer is made from organic corn gluten meal, an all-natural by-product from cornstarch manufacturing. Espoma Organic Weed Preventer feeds lawns to ensure a deep, green color and prevents weeds, including crabgrass and dandelions, by inhibiting root development in seedlings. Children and pets can safely play on the lawn after the application.

Apply Espoma Organic Weed Preventer twice per year, early spring, and fall. The product is granulated for easy application and provides long-lasting nitrogen for a thicker, greener lawn. Espoma Organic Weed Preventer is derived from corn gluten meal and contains 8.23% slow-release nitrogen. The 25-pound bag covers up to 1,250 sq. ft.

Espoma Organic Weed Preventer Features and Benefits

  • Made from corn gluten meal
  • Feeds lawns to ensure a deep, green color and prevents weeds by inhibiting root development in seedlings
  • Apply twice per year, early spring and fall
  • Granulated for easy application, Espoma Organic Weed Preventer provides long-lasting nitrogen for a thicker, greener lawn
  • Children and pets can safely play on the property after application.
Espoma Organic Weed Preventer-25 lb. CGP25, 25 lb
  • Made from corn gluten meal
  • Feeds lawns to ensure a deep, green color and prevents weeds by inhibiting root development in seedlings
  • Apply twice per year, early spring and fall

Last update on 2020-11-21 / Affiliate links / Images from Amazon Product Advertising API


9. Best Weed Killer, Lawn Fertilizer, and Weed Preventer in One:  Scotts Turf Builder Triple Action

Scotts Turf Builder Triple Action provides three benefits in one bag; it kills weeds, including dandelions and clover, prevents future weeds like crabgrass and other grassy weeds, all while feeding and strengthening your lawn. 

Scotts Turf Builder Triple Action prevents crabgrass for four months and feeds to build thick green, lush lawns. The product contains barnyard grass, fall panicum, foxtail, annual bluegrass, broadleaf weeds, corn speedwell, prostrate spurge, knotweed, purslane, chickweed, henbit, and oxalis. Scotts Turf Builder Triple Action is for use on the following grasses, including Kentucky Bluegrass, Perennial Ryegrass, Tall Fescue, Fine Fescue, Bermudagrass, Bahiagrass, Centipedegrass, and Zoysiagrass.

Scotts Turf Builder Triple Action Features and Benefits

  • Triple Action kills, prevents, and feeds
  • Kills the weeds you see and the ones you don’t, including dandelions, chickweed, clover, and most other common broadleaf weeds as listed
  • Prevents crabgrass for four months and feeds to build thick green lawns
  • Also contains barnyard grass, fall panicum, foxtail, annual bluegrass, broadleaf weeds, corn speedwell, prostrate spurge, knotweed, purslane, chickweed, henbit, and oxalis
  • For use on Bermudagrass, Bahiagrass, Centipedegrass, Kentucky Bluegrass, Perennial Ryegrass, Tall Fescue, and Fine Fescue, and Zoysiagrass
Scotts 26003 Turf Builder Triple Action Kills...
  • Triple action kills, prevents and feeds
  • Kills the weeds you see and the ones you don't, including dandelions, chickweed, clover and most other common broadleaf weeds...
  • Prevents crabgrass for 4 months and feeds to build thick green lawns

Last update on 2020-11-20 / Affiliate links / Images from Amazon Product Advertising API

Weed Killer Warning! Always read the manufacturer’s recommendations when choosing and applying any chemical herbicides to your lawn or landscape beds. Wear protective gloves and remember that some weed killer applications can kill flowers, grasses, and shrubs.


Are You Looking for Weed Killer Specially Formulated for Southern Lawns?

Southern grasses are typically known for their dense lawn cover and turn brown in color when temperatures become cooler in the winter.

What Are the Most Common Types of Grasses in Southern Lawns?

The most commonly known southern grasses are Bahia, Bermudagrass, Centipede, St. Augustinegrass, and Zoysiagrass. These are the warm-season grasses and grow vigorously during the heat of summer, generally lack hardiness, and usually turn brown in winter. They are widely grown in milder winter climates of the southeastern and southwestern United States.

These grasses should be fertilized after they begin growing in spring and then throughout the summer.  

Bahiagrass

Bahiagrass is a tough, coarse looking grass that, due to its deep roots, is often recommended for erosion control. It tolerates drought and poor soils but is best in full sun.  Doesn’t create the highest quality lawn and is tough to mow, but should be cut of about 2-3 inches high. Plant from seed or sod. Few pests.

Bermudagrass

Vigorous, tough grass available in two types; common Bermudagrass and hybrid Bermudagrass.

Common Bermudagrass is a light green, fine-textured grass that spreads vigorously by runners and seeds. It often becomes an unwanted weed, moving into flower beds and landscaped areas if not controlled. Common Bermudagrass is easily planted by seed and should be mowed low – about an inch high.

Centipedegrass

Centipedegrass is a low-maintenance and slow-growing lawn that can get by on little fertilizer and has few pests but doesn’t withstand a lot of foot traffic. It has a medium to fine texture and spreads by creeping stolons, hence the name. Centipedegrass will tolerate some shade but is best in full sun.

St Augustinegrass

St Augustinegrass is a broad-bladed, coarse-textured grass that is very popular along the Gulf Coast and in Florida. It’s a fast-growing, deep-rooted turf that spreads by stolons (surface runners). St. Augustinegrass is the best warm season grass for filtered shade.

Zoysia Grass

Zoysia grass forms a dense, medium textured, dark green lawn and is among the hardiest warm-season grasses and is usually planted by sod or plugs. Plugs can take up to two years to fill in and can become weedy. Zoysia grass will take light shade but is best with at least 4 hours of direct sun.

What Are the Best Weed Killers for Southern Lawns?

The best weed killers for southern lawns are made by leading product manufacturers like Roundup, Ortho, BioAdvanced, and Scotts. Below are the most popular products for weed control on southern lawns.


Scotts Turf Builder Southern Lawn Weed & Feed

  • Kills dollarweed, clover, and other listed lawn weeds
  • Feeds grass to crowd out future weeds
  • Builds strong, deep grassroots to strengthen against heat and drought
  • Not for use on Bermudagrass
  • Only for use on St. Augustinegrass (including Floratam), centipede, zoysia, and carpetgrass lawns
Scotts Turf Builder Bonus S Southern Weed & Feed2,...
  • Kills dollarweed, clover and other listed lawn weeds
  • Feeds grass to crowd out future weeds
  • Builds strong, deep grass roots to strengthen against heat and drought

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


BioAdvanced Southern Weed Killer for Lawns

  • BioAdvanced Weed and Feed is specially formulated for Southern lawns
  • Prevents broadleaf, grassy weeds, and crabgrass for up to 6 months
  • Kills weeds including Dandelion, Dollarweed, and Clover
  • Feeds, greens, and strengthens your lawn
Sale
BioAdvanced 704840B Feed 3-in-1 Weed Killer...
  • SOUTHERN LAWNS: BioAdvanced Weed and Feed is specially formulated for Southern lawns
  • 6-MONTH PROTECTION: Prevents broadleaf, grassy weeds, and crabgrass for up to 6 months
  • WEED KILLER: Kills weeds including Dandelion, Dollarweed, and Clover

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


Roundup For Southern Grasses

  • For use on Southern grasses including Floratam and Centipede
  • Kills weeds, not the lawn
  • Kills 93 types of weeds including dollarweed, dandelion, clover, and yellow nutsedge
  • Kills to the root
Roundup For Lawns4 Ready to Use - For Use on...
  • For use on Southern grasses including Floratam and Centipede
  • Kills weeds, not the lawn
  • Kills dollarweed, dandelion, clover and yellow nutsedge

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


Ortho WeedClear Southern Lawn Weed Killer

  • Kill weeds in your lawn, including dollarweed, dandelions, clover, and chickweed with Ortho WeedClear Lawn Weed Killer
  • Get results in hours
  • Kills weeds to the roots but won’t harm the lawn grass (when used as directed)
  • For use on grasses, including bahiagrass, bentgrass, centipedegrass, zoysiagrass, and St. Augustinegrass (except Floratam)
  • Apply to weeds using the attached battery-powered Comfort Wand
Ortho WeedClear Lawn Weed Killer Ready-to-Use1 -...
  • Kill weeds in your lawn, including dollarweed, dandelions, clover, and chickweed with Ortho WeedClear Lawn Weed Killer
  • Get results in hours
  • Kills weeds to the roots but won't harm the lawn grass (when used as directed)

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


More Tools & Preventive Measures to Help You Kill Weeds in Your Lawn

As discussed, the best weed killer for lawns in 2020 will quickly and effectively kill and prevent weeds from growing in the cracks and around the surfaces. With the recommendations above, we hope you’ll transform your lawn so it compliments the beauty of your flower beds.

By tending your lawn with love and care, you’ll be on your way to a beautiful space without weeds. When applying an organic weed killer or herbicide to your driveway, as mentioned in this guide, the secret to success is to use a concentrate. With a concentrate, such as the one from Ortho, you can adjust the potency for the area you will apply the formula to.

Below are additional items that may help out with your weed fighting needs.


Gardening Gloves for Routine Weed Picking

You can’t go wrong with a good set of gardening gloves when treating weeds and gardening. Below are Amazon’s best sellers.

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


Best Weeding Tools to Save Your Back

Below are a handful of weeding tools that a very useful for pulling weeds from rocks and hard-to-reach places.

Last update on 2020-11-18 / Affiliate links / Images from Amazon Product Advertising API


Best Weed Killer Garden Sprayers for Applying Concentrate

Bestseller No. 4
Chapin 20541, 1 Gallon Lawn, Garden and...
1-Gallon, translucent tank with a wide funnel top for easy filling and cleaning; Made in the USA with global materials
$30.42

Last update on 2020-11-20 / Affiliate links / Images from Amazon Product Advertising API



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