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.
Walking out to see a patch of poison ivy or a carpet of creeping charlie taking over your flower beds is frustrating. You need something that actually wipes out the whole weed—roots, leaves, and all—without coming back in a week. This guide cuts through the chemical labels and mixing ratios to help you pick the all weed killer that matches the specific weeds you are fighting.
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.
The right concentrated formula determines whether you kill weeds in one pass or spend all summer re-spraying.
Quick Picks
- Fertilome (10525) Weed Free Zone (32 oz) — Selective & Effective
- PBI/GORDON Trimec Lawn Weed Killer (1 Gallon) — Large Area Champ
- Martin’s Eraser Max Super Concentrate (32 oz) — Heavy-Duty Total Kill
- Control Solutions Eraser & Grass Killer Concentrate (32 oz) — Budget Heavyweight
- Roundup Poison Ivy Plus Tough Brush Killer Concentrate (32 fl. oz.) — Woody Brush Specialist
- Spectracide Weed and Grass Killer Concentrate (32 oz) — Fast-Acting Value
- Ortho GroundClear Weed and Grass Killer Super Concentrate (32 fl. oz.) — Quick-Spray Path Clearer
How To Choose The Best All Weed Killer
The best choice depends on what you are trying to kill and where. A formula that annihilates everything in a gravel driveway will also kill your prized St. Augustine grass if you drift it onto the lawn. Start by identifying the worst weeds—woody vines like poison ivy need different chemistry than clover in your Kentucky bluegrass.
Match the active ingredient to the weed
Glyphosate is the classic non-selective killer; it stops the plant’s growth enzymes and works on almost anything green, from annual weeds to deep-rooted perennial shrubs. Triclopyr targets woody and broadleaf species, making it the go-to for poison ivy, blackberry, and kudzu. Diquat dibromide is a contact herbicide that burns down the leaves you hit, delivering fast visual results in hours, but it does not travel to the roots as effectively.
Consider the rainfast window
A killer that is rainproof in 15 minutes gives you flexibility on a partly cloudy day, while formulas that need several hours to absorb can wash off if a surprise shower hits. If you spray in a rainy season, prioritize a short rainfast window.
Check whether it is selective
A selective weed killer targets broadleaf weeds while leaving your lawn grass unharmed—ideal for spot-spraying dandelions in a fescue lawn. A non-selective killer wipes out everything it touches, so it belongs on driveways, patios, and fence lines where you want bare ground.
Quick Comparison
| Model | Best For | Active Ingredient | Coverage | Rainfast | Amazon |
|---|---|---|---|---|---|
| Ferti-lome Weed Free Zone | Lawn-safe broadleaf control | Dicamba | Full (concentrate) | Within hours | Amazon |
| PBI/Gordon Trimec | Large-area turf treatment | Trimec (2,4-D, MCPP, Dicamba) | 32,000 – 64,000 sq ft | — | Amazon |
| Martin’s Eraser Max | Heavy-duty non-selective total kill | 43.6% Glyphosate + 0.78% Imazapyr | — | A few hours | Amazon |
| Control Solutions Eraser | Value-priced non-selective | 41% Glyphosate | Annual (concentrate) | Hours | Amazon |
| Roundup Poison Ivy Plus | Woody brush and poison ivy | Triclopyr + Fluazifop + Diquat | 1,500 sq ft | 30 minutes | Amazon |
| Spectracide Weed & Grass Killer | Fast curb and crack cleanup | Diquat Dibromide | 1,350 sq ft | 15 minutes | Amazon |
| Ortho GroundClear | Quick-spray paths and patios | — | 1,120 sq ft | 15 minutes | Amazon |
In‑Depth Reviews
1. Fertilome (10525) Weed Free Zone (32 oz)
The lawn-saver that targets creeping charlie without harming your grass.
If your main frustration is broadleaf weeds mixed into a lawn you want to keep, this concentrate is built for that job. The active ingredient, Dicamba (a growth-regulator chemical that makes broadleaf weeds grow themselves to death), kills over 80 listed broadleaf weeds including clover, spurge, chickweed, and thistle. Reviewers report it is the only product that truly takes down creeping charlie overnight, a notoriously tough weed that laughs at weaker formulas.
Buyers report you may need to double the recommended concentration for stubborn clover, and adding a drop of dish soap helps the spray stick to waxy leaves. It is safe on Kentucky bluegrass, Bermudagrass, Bahiagrass, and Zoysiagrass, so you can spot-spray the bad stuff without nuking the whole lawn. The catch is the price per bottle runs higher than basic glyphosate options, but a little concentrate goes a long way—one owner mentioned it handled a whole yard with just the 32 oz bottle.
It shows evidence of injury within hours, which means you see the dandelions drooping the same day you spray. Unlike the non-selective killers below, you can walk away knowing your good grass will still be there tomorrow.
Why lawn lovers pick it
- Targets broadleaf weeds without killing your grass—safe on several common turf types
- Controls over 80 different weeds, including creeping charlie that many others miss
- Shows visible wilting within hours of application
What to watch for
- Expensive per bottle compared to non-selective options
- Some weeds like clover need a higher concentration than the label suggests
Best for lawns: This is the pick if you want to wipe out stubborn broadleaf weeds like creeping charlie without killing your established Kentucky bluegrass or Bermuda lawn.
skip it if: You need a total vegetation killer for driveways or fence lines—the non-selective options below offer better value for bare-ground work.
2. PBI/GORDON Trimec Lawn Weed Killer (1 Gallon)
The gallon jug built for sprawling lawns and serious infestations.
When you are looking at a full acre of turf and dozens of weed species, a 32 oz bottle starts to feel small. This gallon of ready-to-mix concentrate covers between 32,000 and 64,000 square feet, making it the clear choice if you are treating a whole yard rather than spot-spraying. The active ingredient, Trimec, is a classic three-way blend (2,4-D, MCPP, and Dicamba) formulated for cool-season grasses.
One 73-year-old reviewer called it the best weed killer he has ever used. It kills hard-to-control lawn weeds without harming the grass when you follow the rates. The trade-off is that some tough weeds like Virginia buttonweed may require a double or triple portion of the Trimec mix, which means the gallon does not stretch as far on those heavy infestations. Contrast this with the Fertilome pick above—both work on broadleaf weeds, but Trimec gives you a much bigger starting tank for the money.
Owners mention it excels on creeping charlie and buttonweed in St. Augustine turf, with creeping charlie dying within a week at 83°F. The turf stays healthy while the dead weed patches fade out. No assembly is required—just pour and mix.
What the gallon gives you
- Massive coverage at 32,000 to 64,000 square feet per gallon—best for large properties
- Kills tough broadleaf weeds without damaging cool-season lawn grasses
- Trusted formula backed by decades of use; a verified 5-star reviewer called it the best in 73 years
Where you might need to adjust
- Stubborn weeds like Virginia buttonweed may need a stronger mix than the label rate
- Heavy infestations can burn through the gallon faster than you expect
Reach for this when: You are treating a large cool-season lawn and want one jug that handles the whole property without mixing smaller bottles repeatedly.
Look elsewhere if: You only need to spot-spray a few weeds—a smaller 32 oz concentrate will last you longer without going bad.
3. Martin’s Eraser Max Super Concentrate (32 oz)
The farm-grade concentrate that knocks out kudzu and keeps fence lines bare.
When you need something stronger than off-the-shelf garden center sprays, this super concentrate packs 43.6% glyphosate plus 0.78% imazapyr—a one-two punch that kills the top growth and stops regrowth for months. Imazapyr is a soil-residual herbicide (it stays in the ground and prevents new plants from sprouting). This is a post-emergent herbicide (kills plants that are already growing), meaning it only hits plants that are already up and growing, not seeds in the soil. The oil-based formula stays on the leaf surface longer than water-based versions, which helps it penetrate waxy leaves like those on kudzu.
Customers note it kills grass and weeds in less than two days, and a longtime user in the South said it is the only thing that stops kudzu, a vine known for being crazy hard to kill. Another reviewer with 30 years of spraying called it the best he has ever tried. The item weight is 2.6 pounds, which is 30% heavier than the 2-pound Control Solutions Eraser below—more active solids per jug. It is rainfast within a few hours, so a passing shower an hour after spraying will not wash away your work.
The downside is total vegetation death: this is non-selective, so any drift onto a lawn grass or flower bed will kill it. Use it straight on gravel driveways, fence lines, and farm paths where you want bare dirt. Unlike the selective Fertilome or Trimec, you cannot use this in a lawn without killing the lawn.
What makes it a heavy hitter
- High-concentration glyphosate (43.6%) plus imazapyr (0.78%) for total vegetation control
- Kills tough brush like kudzu within days, per multiple verified reviews
- Rainfast in a few hours; rain will not ruin a fresh spray
Where it can burn you
- Non-selective—kills any plant it touches, including your lawn and flowers
- Results on deep-rooted perennials can take up to two weeks to show full death
Made for bare-ground work: If you need to clear a fence line, gravel driveway, or farm path and keep it clear, this is the most potent option in the roundup.
Not for: Spot-spraying weeds inside a lawn—the non-selective nature means it will leave dead patches wherever it touches.
4. Control Solutions Eraser & Grass Killer Concentrate (32 oz)
A straightforward glyphosate concentrate that outlasts the big brands for less.
This is the budget-friendly workhorse if you need a big dose of non-selective weed control without the heavy-duty imazapyr boost of the Martin’s above. The active ingredient is 41% glyphosate in a low-odor, water-based formula. It has no residual soil activity, so you can plant in the same spot once the weeds are gone without worrying about leftover chemicals stunting new growth.
Reviewers point out that it kills everything green—weeds, grass, clovers, flowers—100% dead in 1-2 weeks. One reviewer has been using it for 17 years and calls it a killer for sure. The 2-pound bottle (30% lighter than the Martin’s 2.6-pound jug) means you get slightly less active concentrate per bottle, but the price per ounce is consistently lower than the premium picks, making it the go-to for covering a lot of ground on a budget. It is rainproof within hours.
Patience is key here: many first-time users report seeing no effect for the first two days, then yellowing at day 4-7, and full death by day 7-14. Poison ivy may need a reapplication. The ingredient is simple and effective—nothing fancy, just reliable.
Where it earns its keep
- 41% glyphosate at a lower cost per ounce than many big-brand alternatives
- No residual soil activity—plant new flowers or grass right after the weeds die
- Low-odor formula makes mixing and spraying more pleasant
What takes getting used to
- Slow action—you will not see visible results until at least 4 days after spraying
- Poison ivy and woody vines often need a second application
Pick this for: Big-area non-selective spraying where you care about price per gallon and are fine waiting a week for results.
Consider something else if: You want fast, visible results in hours—the diquat-based Spectracide or Ortho will be more satisfying.
5. Roundup Poison Ivy Plus Tough Brush Killer Concentrate (32 fl. oz.)
The targeted remedy for poison ivy, poison oak, and woody vines that normal spray fails.
If you have ever brushed against a hidden patch of poison ivy, you know why this bottle exists. The exclusive formula combines Triclopyr, Fluazifop-P-Butyl, and Diquat Dibromide, a mix designed specifically for woody and brush species. It kills poison ivy, poison oak, poison sumac, wild blackberry, and kudzu, and yet it is rainproof in as fast as 30 minutes—much faster than the glyphosate options above.
Shoppers say that most plants die with one application, but tough ones need a few. One reviewer living in a forest called it the best stuff he has ever used. The bottle is strikingly light at just 8 ounces, versus the Control Solutions bottle at 2 pounds and the Roundup liquid volume at 32 fluid ounces, so you are paying for concentrated power, not water weight. Each gallon of spray solution covers 300 sq. ft.
It allows planting after 1 to 30 days, depending on what you put in the ground. The catch is the small bottle size—you will need to mix carefully and buy more than one if you are clearing an acre of brush.
What makes it a specialist
- Formulated to kill poison ivy, poison oak, blackberry, and kudzu that basic glyphosate struggles with
- Rainproof in just 30 minutes—spray and walk away without watching the sky
- Visible results in hours, not days
What to know before buying
- Bottle is small at 8 ounces; large brush clearing may require two or three bottles
- Not for broadleaf weeds in a lawn—this is for woody areas away from turf
Perfect for: Anyone battling poison ivy, blackberry thickets, or kudzu along fences, trails, and wooded edges where standard weed killer bounces off.
Not your best bet: For general lawn weed control—the Fertilome or Trimec options above are safer for your grass.
6. Spectracide Weed and Grass Killer Concentrate (32 oz)
The curb-line cleaner that shows dead weeds by lunchtime.
When you want to see results the same day, Spectracide uses Diquat Dibromide, a contact herbicide (a chemical that only kills the parts of the plant it directly touches) that burns down the foliage it touches. You can expect visible results as fast as 3 hours, which is dramatically faster than the glyphosate-based killers above that take a week. The bottle covers 1,350 sq. ft. and includes the Accumeasure cap—twist, squeeze, and pour without using a separate measuring cup.
Buyers report mixing it in a reusable 1-gallon sprayer and killing weeds along the curb within a day. It is rainfast in 15 minutes, tying with the Ortho GroundClear for the fastest rain protection in this roundup. The downside is that Diquat kills the leaves fast but does not travel deep to the roots like glyphosate or triclopyr do, so some perennial weeds may regrow from the root system a few weeks later.
Compared to the Ortho below, Spectracide has a slightly larger coverage per bottle (1,350 sq. ft. vs 1,120 sq. ft.) and the same 15-minute rainfast window, but the Ortho targets root-kill and crabgrass more specifically.
Why speed matters
- Visible results in as fast as 3 hours—the fastest-acting option in this guide
- Accumeasure cap eliminates measuring mistakes; just twist and pour
- Rainproof in 15 minutes, so a quick sprinkle will not ruin your application
Where fast action meets a limit
- Contact herbicide does not kill deep roots; tough perennials may come back
- Accumeasure cap is clunky—some buyers swap it for a regular lid
Reach for this when: You want fast, satisfying results on driveway cracks, walkways, and around flower beds where you will see the brown leaves by dinner.
pass on it if: Your problem is deep-rooted perennial weeds like poison ivy or blackberry—the Roundup or Martin’s options will give you longer-lasting control.
7. Ortho GroundClear Weed and Grass Killer Super Concentrate (32 fl. oz.)
The no-nonsense spray that leaves patios and paths bare overnight.
If your main struggle is weeds popping through paver cracks, sidewalk seams, and gravel driveways, Ortho GroundClear is a super concentrate that starts working immediately. It is designed to kill tough weeds and grasses to the root, and the label calls out clover, dandelion, oxalis, chickweed, and crabgrass specifically. The 32 fl. oz. bottle treats up to 1,120 sq. ft. when mixed.
Owners mention spraying it yesterday and seeing the vegetation gone today—one reviewer even made 5 gallons of solution from the single 32 oz bottle, which is excellent value for money. It is rainfast in 15 minutes, so you can spray in the morning and not panic if a storm rolls in after lunch. The formula is fast-acting but the Ortho label specifically says to apply when the air temperature is above 60°F for best results, which matters if you are spraying early in spring.
Some online debate exists about how well it kills silverleaf nightshade and other deeply-tough perennial weeds, but for the typical driveway and fence-line weed, it works fast. You will not see the super long-term bare-soil persistence of the Martin’s Eraser Max, but for a quicker, cleaner look at a lower entry point, it delivers.
What makes it easy
- Starts working immediately—customers note full vegetation death by the next day
- Rainfast in 15 minutes, freeing you from weather anxiety after spraying
- One 32 oz bottle can make up to 5 gallons of mixed solution, stretching your dollar
Where it falls short
- Not effective below 60°F, limiting early-spring or late-fall use
- Kills to the root on most weeds, but very tough perennials may require a second pass
Best for: Homeowners who want a fast, easy-mixing weed killer for patios, sidewalks, and driveways—especially if you are already familiar with Ortho products.
Look elsewhere if: You need a weed killer for use in cooler spring temperatures or against deeply stubborn woody brush.
Understanding the Specs
Glyphosate vs. Triclopyr vs. Diquat
The active ingredient is the heart of your weed killer. Glyphosate is a non-selective systemic herbicide (absorbed by leaves and travels to roots, killing the whole plant over 1 to 2 weeks). Triclopyr targets woody and broadleaf species specifically, making it the go-to for poison ivy, blackberry, and brush. Diquat dibromide is a contact killer (burns the leaves it touches in hours but does not move to the roots), so perennials may regrow.
Rainfast Window
This is the time a spray must stay on the leaf without being washed off by rain. A 15-minute window lets you spray right before a light shower. A 30-minute window is still quite practical. Products that need several hours to dry are risky if you live in an unpredictable climate—one surprise storm and your work is wasted.
FAQ
Can I use a non-selective weed killer in my lawn?
How long does it take for a weed killer to show results?
Will rain wash away my weed killer after I spray?
What is the difference between a concentrate and a ready-to-use spray?
Can I spray weed killer on a windy day?
How do I mix a weed killer concentrate?
Will the weed killer in this guide work on poison ivy?
Can I plant new flowers or grass after using a weed killer?
What does “selective” mean in a weed killer?
How do I store leftover mixed weed killer?
Final Thoughts: The Verdict
For most buyers, the all weed killer winner is the Fertilome Weed Free Zone because it targets broadleaf weeds like creeping charlie without harming your lawn, showing results within hours. If you want to clear a fence line or gravel driveway of all vegetation, grab the Martin’s Eraser Max Super Concentrate for its powerful glyphosate plus imazapyr formula. And for large-area turf treatment, the standout is the PBI/Gordon Trimec gallon jug, covering up to 64,000 square feet with a proven broadleaf killer.
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.