7 Best Weed Killer That Won’t Kill Grass | Weed Free Grass

Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.

You have a green lawn you are proud of, except for the clover, dandelions, and chickweed popping up everywhere. Spray a weed killer, and suddenly you are terrified of turning your whole yard brown. The right product solves that — a selective herbicide that targets the broadleaf weeds without touching the grass you actually want to keep.

I’m Rikta — the founder and writer behind Lawn Gear Lab. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.

You want to kill the weeds in your lawn without harming the grass, so the best weed killer that won’t kill grass for you depends on your specific weed types, lawn size, and how much patience you have for multiple applications — that is the honest takeaway from the specs and real buyer reports on the top-selling formulas.

How To Choose The Best Weed Killer That Won’t Kill Grass

Picking the wrong spray is a costly mistake — you either watch weeds thrive or accidentally torch your lawn. Focus on these three things to get it right the first time.

Selective vs. Non-Selective: The single most important label check

A selective herbicide (a weed killer that targets only certain broadleaf weeds) leaves your turf grass untouched. Non-selective sprays, like glyphosate (a chemical that kills any plant it touches), are for patios or driveways, not your lawn. All products here are selective, but you still need to check the bottle to confirm your specific grass type — Bermuda, Fescue, Kentucky Bluegrass, Zoysia, or others — is listed as safe.

Weed type: Match the spray to your specific invader

Not all weed killers handle every weed. Clover and chickweed respond well to formulas with Dicamba and Triclopyr, while crabgrass often needs a different active ingredient or a pre-emergent applied earlier in the season. Read the label’s “weeds controlled” list before you buy — a product that kills dandelions may not touch creeping Charlie.

Application method: Ready-to-use, concentrate, or weed-n-feed

Ready-to-use (RTU) bottles with a spray wand are the simplest for spot-treating a few weeds — just point and spray. Concentrates require you to mix with water (saves money per treatment, but you need a sprayer). Weed-n-feed products combine fertilizer and herbicide, covering your whole lawn in one pass, which is convenient but may waste chemicals on areas that do not need them.

Quick Comparison

Model Best For Coverage Liquid Volume Item Weight Amazon
BioAdvanced Weed Killer Concentrate 32oz Large lawns with many broadleaf weeds 16,000 sq ft 32 fl oz 32 oz Amazon
Ferti-lome Weed Free Zone 32oz Stubborn creeping Charlie and fast results Full (varies by mix rate) 32 fl oz Amazon
Bonide Weed Beater Ultra Concentrate 32oz Versatile control over 200 weed types 10,000 sq ft per pint 32 fl oz 2 lbs Amazon
Bonide Chickweed, Clover & Oxalis Killer 128oz Large patches of chickweed and clover 128 fl oz 8 lbs Amazon
Ortho WeedClear Lawn Weed Killer 1.33 gal Easy spot treatment with limited overspray Approx. 10,644 sq ft 1.33 gal 195.68 oz Amazon
Scotts Liquid Turf Builder Plus 2 Weed Control 32oz Dual-action fertilizing plus weed killing 6,000 sq ft (warm), 4,000 sq ft (cool) 32 fl oz 8 oz Amazon
Ortho Weed B Gon Weed Killer 24oz RTU Quick results on dandelions and clover 5,000 sq ft 24 fl oz 24 oz Amazon

In‑Depth Reviews

Best Overall

1. BioAdvanced Weed Killer for Lawns, Concentrate, 32oz

Concentrate16,000 sq ft

The biggest coverage for the price — one bottle treats a 16,000-square-foot lawn while staying affordable.

For anyone with a medium-to-large yard, this is the most economical route. At 32 ounces of concentrate, it covers up to 16,000 square feet — compared to the Ortho Weed B Gon RTU trigger’s 5,000 square feet. It kills over 200 broadleaf weeds (dandelion, clover, dollar weed, and more) down to the root without harming your lawn when used as directed, and buyers report it “eliminates dollar weeds effectively.”

Because it is a concentrate, you do need a sprayer and you mix it with water yourself, which takes a few extra minutes per treatment. But the per-treatment cost is far lower than any ready-to-use option, and it works on both southern and northern lawns. One reviewer noted it “saves money vs. heavy Weed & Feed” when paired with a generic 13-13-13 fertilizer.

The active ingredients are Dicamba, Mecoprop-P, and dimethylamine salt — a proven trio for selective broadleaf control. Results show in hours, with root kill preventing regrowth. Just be aware: the concentrate bottle’s dial can be stiff on first use — one reviewer struggled to “press the tab” initially but figured it out by the second attempt.

The Case for It

  • 16,000 sq ft coverage per bottle — outpaces every other concentrate here
  • Kills over 200 weed types to the root with a single application
  • Works on southern and northern grass varieties

Two Things to Know

  • Requires a separate sprayer (not included)
  • One reviewer saw temporary browning on Bermuda grass after application

Reach for this if: you have a large lawn and want the best value per square foot — mix it yourself and save over RTU options.

Look elsewhere if: you prefer grab-and-go spraying and do not want to mix chemicals or own a sprayer.

Top Performer

2. Fertilome (10525) Weed Free Zone (32 oz)

ConcentrateCreeping Charlie Killer

The specialist that nails creeping Charlie when nothing else can — visible damage in hours.

Ferti-lome Weed Free Zone is the gold standard for one stubborn weed: creeping Charlie. Buyers consistently say it is the “only product on the market that truly kills creeping charlie overnight.” That alone makes it worth considering, because few selective herbicides handle that ground ivy. It controls over 80 broadleaf weeds total, including clover, spurge, chickweed, and thistle.

Unlike many concentrates, this one works fast — you see injury within hours of spraying. It is safe on Kentucky Bluegrass, Bermudagrass, Bahiagrass, Zoysiagrass, and more. One buyer sprayed weeds between flowers and reported it “did not kill flowers” while killing dandelions and spurge. The catch: some users found the recommended mixture too weak for clover and had to double the potency, and a few added Dawn dish soap to help the spray stick better.

This is a concentrate you mix with water, so you need a pump sprayer or backpack sprayer. The per-bottle cost is higher than the BioAdvanced — one buyer mentioned “it works well but it’s pretty spendy.” But a little goes a long way, and for tough weeds, the speed and reliability justify the extra cost.

Why It Stands Out

  • class-leading speed — weed injury visible in hours, not days
  • One of the few selective products that kills creeping Charlie effectively
  • Safe on a wide range of common lawn grasses

Consider These Limits

  • Recommended mix rate may be too weak for clover (users suggest doubling it)
  • Higher price per bottle than comparable concentrates

Best if: creeping Charlie is your nemesis or you want the fastest visible results from a concentrate.

skip it if: your lawn only has dandelions and clover — the lower-priced BioAdvanced or Ortho options will work fine.

Best Value

3. Bonide Weed Beater Ultra, 32 oz Concentrate

ConcentrateKills 200+ Weeds

A concentrated formula that kills over 200 weed types and stays put after a rain.

Bonide Weed Beater Ultra is a versatile workhorse for anyone dealing with a mixed bag of weeds. It kills over 200 broadleaf weeds — dandelion, clover, ground ivy, oxalis, ragweed, chickweed, and more — without harming your grass when used as directed. One owner reported it was “very effective against wild onion,” which is a weed many other sprays struggle with.

The formula is rainproof within hours after drying, which is a real advantage if you are on a tight schedule and cannot guarantee 24 hours of dry weather. One pint of concentrate treats approximately 10,000 square feet, and the full 32-ounce bottle goes a long way. Owners mention seeing weed injury within hours and plant death in 7–14 days.

It instantly mixes with water and works with backpack, compression, or knapsack sprayers. The main trade-off: persistent weeds, especially broadleaf types, may need 2 or more treatments — one customer observed they “likely need more next season.” It is not a one-and-done for every weed, but it is among the most effective and rain-safe formulas you can buy.

What Works

  • Rainproof after drying — no need to worry about an unexpected shower
  • Covers a massive range of weeds (over 200 species)
  • Kills tough weeds like wild onion and ground ivy

What to Consider

  • Some broadleaf weeds need more than one application
  • Requires a separate sprayer (not ready-to-use)

Grab it if: you have several different weed types and need a rainproof formula that handles them all.

Pass if: you only have chickweed or clover — a more targeted spray like the Bonide Chickweed & Clover Killer may be simpler.

Large Area Pick

4. Bonide Chickweed, Clover & Oxalis Killer, 128 oz Ready-to-Use Spray

Ready-to-Use128 fl oz

A giant ready-to-use jug that takes the pain out of spot-treating clover and chickweed across a big yard.

At 128 fluid ounces, this ready-to-use spray from Bonide is the largest-volume RTU in the lineup — compared to the Ortho Weed B Gon 24oz trigger’s 24 ounces. That makes it ideal for anyone who wants to spray large patches of clover, chickweed, or oxalis without mixing anything. Customers note it “kills dandelions in one spray; clovers brown in 3 days.”

The active ingredients are Dicamba and Triclopyr, a combination that targets those specific broadleaf weeds while leaving your lawn grass alone.

A few buyers reported mixed results on clover — one said it “didn’t work on clover” after heavy spraying. That suggests it is most reliable when temperatures are moderate and you follow the “no rain for 2 days” rule. If you have heavy clover infestations, you may need a second pass or a stronger concentrate.

Pros

  • Huge 128 oz ready-to-use bottle — no mixing, no measuring
  • Fast visible results: clover browning in 3 days
  • Clear, nearly odorless formula

Cons

  • Hand sprayer is weak for large lawns (buy a separate pump sprayer)
  • Inconsistent results on clover for some users

Ideal for: homeowners with medium yards who want grab-and-go convenience and primarily fight chickweed and clover.

Not ideal if: you have a huge lawn or want to blanket-treat — the Bonide Weed Beater Ultra concentrate is more cost-effective per square foot.

Easiest to Use

5. Ortho WeedClear Lawn Weed Killer Ready-To-Use with Comfort Wand (1.33 gal)

RTU with Wand1.33 gal

The battery-powered Comfort Wand makes spot-treating weeds as easy as pointing a toy.

If you hate the hassle of sprayers, this is your pick. Ortho WeedClear comes with a battery-powered Comfort Wand that delivers a consistent spray pattern with minimal overspray — buyers call it “intuitive and easy to use.” The 1.33-gallon container covers approximately 10,644 square feet, and it kills crabgrass, dandelion, clover, chickweed, and creeping Charlie down to the root.

It works on a broad range of lawn grasses: Bermudagrass, Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass, and Zoysiagrass. One buyer near Chicago reported it was “effective on mixed grass lawns” and killed dandelions and thistle without harming grass. Just keep your expectations on timing — this is not an instant scorch. The same reviewer noted it “works slowly: wilting in days, death in weeks, full melt in a month.” It is a patient process.

At 195.68 ounces, the total weight is significantly heavier than most RTU products — you carry the whole jug by its handle, not a small trigger bottle. A few buyers reported that recent batches did not work at all, with one saying “no smell during spraying” and weeds staying green. That variability is note, so test a small patch before committing to a full yard.

What You Get

  • Battery-powered wand makes spot treatment fast and precise
  • Works on 6 common lawn grass types
  • Large 1.33 gal container covers 10,644 sq ft

What You Should Know

  • Takes weeks to fully kill weeds — not a quick fix
  • Some recent batches reported as ineffective by a few buyers

Perfect if: you want the least physical effort — just point the Comfort Wand and spray.

Consider something else if: you need fast results (BioAdvanced or Ferti-lome work faster) or want a concentrate for lower per-treatment cost.

2-in-1 Pick

6. Scotts Liquid Turf Builder with Plus 2 Weed Control Ready-to-Spray (32 fl. oz.)

Weed & FeedHose-End Applicator

Fertilize and kill weeds in one pass — the hose-end sprayer makes it easy.

Scotts Liquid Turf Builder with Plus 2 Weed Control combines a quick-release nitrogen fertilizer with a broadleaf herbicide. You attach the bottle to your garden hose, spray the whole lawn, and get greener grass while killing dandelions, clover, and 15 other listed weeds — including buckhorn, chickweed, ground ivy, henbit, and ragweed. One user highlighted it “effectively kills weeds and fertilizes grass, resulting in greener, healthier lawn.”

The hose-end applicator is the big convenience: no measuring, no mixing, no separate sprayer. The 32-ounce bottle covers up to 6,000 square feet for warm-season lawns and 4,000 square feet for cool-season lawns. But the weed-killing range is narrower than dedicated herbicides — it does not kill crabgrass or clover reliably according to some buyers. One shopper added it “didn’t kill my crab grass or clover but no dandelions and really great fertilizer.”

Because it feeds and weeds at the same time, you end up fertilizing weeds in areas where you only wanted weed control. And you need to follow the watering rules carefully — granular versions require not watering for 2–3 days after application to avoid burn spots. If your main goal is just weed control without the extra nitrogen, a standalone selective herbicide is a cleaner choice.

Why People Like It

  • Two jobs in one — fertilizing and weed control with a single hose-end spray
  • Covers up to 6,000 sq ft per bottle
  • Reviewers point out noticeably greener, thicker grass after treatment

Where It Falls Short

  • Does not reliably kill crabgrass or clover
  • Fertilizer is wasted on areas with no weeds

Grab it if: your lawn needs a general green-up plus dandelion control — the dual action saves you a separate fertilizing pass.

pass on it if: you have clover or crabgrass and need targeted killing — pick a dedicated selective spray instead.

Budget Champion

7. Ortho Weed B Gon Weed Killer, 24oz, RTU Trigger

Ready-to-UseResults in Hours

A small, simple trigger spray that packs a big punch on dandelions and clover.

Ortho Weed B Gon is the classic entry-level selective weed killer — a 24-ounce trigger bottle that you grab off the shelf and start spraying. It kills 250+ listed broadleaf weeds including dandelions, clover, and chickweed, and it guarantees it will not harm your lawn when used as directed. Shoppers say “seeing great results killing clover and other weeds without killing the grass.”

It covers 5,000 square feet, which is a fraction of the BioAdvanced 16,000 sq ft from a concentrate. But for a small yard or targeted spot treatment, the convenience is real — no mixing, no hose, no cleanup. Results are visible in hours, and it kills weeds to the root so they do not grow back quickly.

The downsides are the price per treatment (it is more expensive per square foot than any concentrate) and the small bottle size. If you have a large infestation, you will need multiple bottles, and the trigger sprayer can be tiring on your hand after a few minutes of continuous use. It is best as a quick spot-treatment tool — pull it out when you see a dandelion pop up and zap it in seconds.

What Makes It Work

  • Dead simple to use — spray and walk away, no setup
  • Kills over 250 weed types down to the root
  • Buyer-tested and loved for clover and dandelions

What Holds It Back

  • Small 24 oz bottle — runs out fast on medium lawns
  • More expensive per square foot than concentrates

Reach for it when: you have a small yard or want a spot-treatment tool for a few random weeds — the instant convenience matters.

Choose a concentrate if: your entire lawn has a weed problem — the BioAdvanced or Bonide Weed Beater Ultra will save you money and trips to the store.

Understanding the Specs

Selective Herbicide vs. Non-Selective

A selective herbicide (like the products here) targets a specific enzyme pathway that only broadleaf weeds have, leaving your turf grass untouched. Non-selective herbicides kill any plant they touch because they attack a universal process like photosynthesis. Always check the label for the phrase “will not harm lawn or grass when used as directed.”

Coverage Area and Volume

Coverage is usually listed in square feet per bottle — for example, BioAdvanced at 16,000 sq ft and Ortho Weed B Gon at 5,000 sq ft. The larger the number, the fewer bottles you need per treatment. Volume tells you how much liquid you are buying (24 fl oz vs 128 fl oz), but the critical number is coverage because that determines total value.

Active Ingredients: Dicamba, Triclopyr, and 2,4-D

Most selective lawn weed killers use a mix of Dicamba (targets clover and chickweed), Triclopyr (hits woody weeds and creeping Charlie), and 2,4-D (general broadleaf control). Products with all three ingredients tend to be the most versatile. If you have a specific weed like oxalis, check the label for that exact weed name.

Ready-to-Use vs. Concentrate

Ready-to-use (RTU) products come pre-mixed in a spray bottle or wand — you open and spray. Concentrates require you to mix the chemical with water in a separate sprayer. RTUs cost more per treatment but are simpler. Concentrates are cheaper per square foot and let you control the strength, but they require handling the chemical yourself.

Rainfastness

“Rainfast” means the product has dried enough that rain will not wash it off the leaves. Most selective herbicides are rainfast within 2 to 4 hours. If it rains before the product dries, you will need to reapply. Bonide Weed Beater Ultra specifically says it is “rainproof within hours” — a real advantage if you are on a tight spray schedule.

Weed-n-Feed vs. Standalone Herbicide

Weed-n-feed products (like Scotts Turf Builder with Plus 2 Weed Control) combine fertilizer and herbicide in one application. They are convenient but less targeted — you end up fertilizing the weeds too. A standalone selective herbicide lets you treat only the weeds, which is better for light infestations or spot treatment.

FAQ

How does a weed killer kill weeds but not grass?
The active ingredients target a specific enzyme pathway found in broadleaf plants (weeds) but not in grass plants (which are narrow-leaf monocots). This is called “selective herbicidal activity.” As long as you apply it as directed and the label lists your grass type as safe, your lawn stays green while the weeds die.
Can I use a selective weed killer on all grass types?
No. Each product has a list of safe grass types on the label — common ones include Kentucky Bluegrass, Bermudagrass, Fescues, Zoysiagrass, and Ryegrass. If you have St. Augustine or Centipede grass, you need a specialty formula that is explicitly labeled safe for those warm-season grasses.
How long does it take for the weeds to die?
Most formulas show visible injury (wilting, yellowing) within a few hours to 24 hours. Complete death of the weed — root and all — usually takes 7 to 14 days. Some persistent species like creeping Charlie or wild violet may need a second application 2–3 weeks later.
Can I mow my lawn after spraying weed killer?
Wait at least 24 to 48 hours after spraying before mowing. Mowing too soon removes the herbicide from the weed leaves and reduces effectiveness. It is also best to wait until the weeds are actively growing — not stressed by heat or drought — for maximum uptake.
Will rain wash away the weed killer?
Most selective herbicides are rainfast in 2 to 4 hours after application. If rain occurs before the product has dried completely, you will need to reapply. Bonide Weed Beater Ultra states it is rainproof within hours after drying — check the label for the specific rainfast time.
What is the difference between a pre-emergent and a post-emergent weed killer?
A pre-emergent prevents weed seeds from germinating (use it in early spring). A post-emergent kills weeds that are already growing above the soil. All the products in this guide are post-emergent herbicides — they stop active weeds, not prevent new ones.
How often can I apply a selective weed killer?
Most labels allow a second application after 14 to 21 days. Do not apply more than twice per growing season, and never exceed the label’s rate. Over-applying causes chemical buildup in the soil and can eventually damage your grass.
Why did my weed killer turn my grass yellow?
Yellowing or temporary browning of grass can happen if you overdosed the area, applied in extreme heat (above 85°F), or used a product not labeled for your grass type. The grass usually recovers within a week. In BioAdvanced reviews, one reviewer noted temporary browning on Bermuda grass after treatment.
Can I use a weed killer and fertilizer at the same time?
Yes, but you can either use a weed-n-feed combination product like Scotts Turf Builder with Plus 2 Weed Control, or apply a separate herbicide and wait 2–3 days before fertilizing. Using both at once means the herbicide and fertilizer may compete for absorption — wait for the weeds to absorb the herbicide first.
Is it safe for pets after spraying?
Most selective herbicides recommend keeping people and pets off the lawn until the spray has fully dried (typically 1–4 hours). Check the specific label for re-entry time. After drying, the product has bonded to the plant tissues and poses minimal risk — but always follow the label’s pet safety instructions.

Final Thoughts: The Verdict

If you want one dependable pick, the best weed killer that won’t kill grass winner is the BioAdvanced Weed Killer for Lawns, Concentrate, 32oz because it covers 16,000 square feet per bottle, kills over 200 broadleaf weeds to the root, and works on both southern and northern lawns at a better per-treatment cost than any ready-to-use. If you want the fastest results on tough weeds like creeping Charlie, grab the Ferti-lome Weed Free Zone. And for the easiest grab-and-go spot treating, the standout is the Ortho WeedClear with the Comfort Wand.

How We Picked

We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.

Sources & Methodology

Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of July 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.

As an Amazon Associate, Lawn Gear Lab earns from qualifying purchases. This does not affect which products we feature.

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