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.
Dandelions seem harmless until your lawn turns into a yellow-spotted mess, and pulling them by hand always leaves a root fragment behind that grows right back. The smartest fix is a selective broadleaf herbicide that targets dandelions and other weeds without harming your grass. This guide cuts through the chemical names and marketing claims to find the concentrate that actually works.
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.
Whether you are fighting a single dandelion patch or an entire acre, these are the best options for the job. Here is the honest breakdown of the top broadleaf herbicide for dandelions on the market today.
Quick Picks
- GORDON’S Amine 400 2,4-D Weed Killer, 1 Quart — Best Overall
- SpeedZone EW Lawn Weed Killer — Top Performer
- Fertilome (10525) Weed Free Zone (32 oz) — Best for Creeping Charlie
- Ortho WeedClear Lawn Weed Killer Ready-To-Use with Comfort Wand — Convenience Pick
- Select Source Triad QC Select – 3-Way Herbicide with Quinclorac (Quart) — Most Versatile
How To Choose The Best Broadleaf Herbicide For Dandelions
Not every weed killer is safe for your lawn. The right product kills dandelions and clover while leaving your grass green. Here are the main factors that separate an effective formula from a waste of money.
Selectivity: Kills the weed, not the lawn
Selective herbicides use active ingredients like 2,4-D, Dicamba, and Mecoprop-p that target broadleaf weeds without harming most common turf grasses. Always check the label to make sure your specific grass type — like Kentucky Bluegrass, Fescue, or Bermuda — is listed as safe.
Concentrate vs. Ready-to-Use
Concentrates require mixing with water and give you far more coverage per dollar. A quart of concentrate can treat a full acre. Ready-to-use formulas come with a spray wand and are more convenient for small yards, but they cost more per square foot and you carry the full weight of the water yourself.
Speed of action and rainfastness
Some herbicides show visible wilting within hours, while others take a week or more. The time until rain can wash the chemical off — called rainfast — ranges from 3 hours to 24 hours. If you are in a rainy season, a fast rainfast window is a major advantage.
Quick Comparison
| Model | Best For | Active Ingredients | Liquid Volume | Coverage | Amazon |
|---|---|---|---|---|---|
| GORDON’S Amine 400 | Budget Acre Coverage | Herbicide | 32 fl oz | 43,560 sq ft | Amazon |
| Ortho WeedClear | No-Mix Convenience | 2,4-D, Dicamba, MCPP | 1.33 gal | ~10,644 sq ft | Amazon |
| SpeedZone EW | Fastest Burn | 2,4-D, Dicamba, Mecoprop-p, Carfentrazone | 20 fl oz | Mix per 1,000 sq ft | Amazon |
| Fertilome Weed Free Zone | Creeping Charlie | Dicamba | 32 fl oz | Full (per label) | Amazon |
| Select Source Triad QC Select | Grassy + Broadleaf | 2,4-D, Dicamba, Quinclorac | 32 fl oz | Various turf sites | Amazon |
In‑Depth Reviews
1. GORDON’S Amine 400 2,4-D Weed Killer, 1 Quart
A single quart that blankets a full acre without breaking your budget.
This is the pure-workhorse concentrate for anyone who has a large lawn or pasture to cover. The listing identifies it simply as a concentrated herbicide formula for killing dandelions and other broadleaf weeds while leaving grass like Kentucky Bluegrass unharmed.
Buyers report mixing just 2 ounces per gallon with a pump sprayer and seeing dandelions, creeping charlie, and other broadleaf weeds dead in under 5 days, with no dead spots on their lawn. The lid seal can be tricky — some units arrive with only a foil top, so store it carefully upright.
If you are treating a single small patch, a ready-to-use sprayer is easier. But for the best per-square-foot value on dandelions and woody weeds like fern sagebrush, this quart is tough to top.
Why it wins
- Treats a full acre with one bottle
- No dead spots on grass reported by users after multiple uses
- Works on dandelions in under 5 days
Honest catch
- No measuring cup or built-in sprayer included
- Foil seal may be the only lid protection
Reach for this if: you need to treat a large area economically and don’t mind mixing your own spray.
Look elsewhere if: you want a grab-and-spray wand or need multiple active ingredients for stubborn grassy weeds.
2. SpeedZone EW Lawn Weed Killer
Weeds curl and brown in two days flat, even in cool weather.
SpeedZone EW combines four active ingredients — 2,4-D, Dicamba, Mecoprop-p, and Carfentrazone — to deliver the fastest visible results of any product here. The manufacturer claims visible effects within hours, and buyers confirm seeing weeds curl and turn brown in about 2 days. It handles over 90 listed weeds including dandelion, white clover, ground ivy, spurge, and goosegrass.
It is rainfast in just 3 hours, and you can reseed your lawn as soon as 7 days after application. The concentrated bottle is 20 fluid ounces, noticeably smaller than the 32-ounce GORDON’s, but its speed makes it the go-to for professional lawn crews who need quick turnover. One reviewer noted the cap holds roughly 0.2 fluid ounces, so you can use it as a rough measuring guide instead of needing a separate cup. On the downside, some users report that tough weeds like spurge can return within 2 months, requiring reapplication.
If you are tired of waiting a week for weeds to die and want something that works fast in spring or fall, this is the pick.
Speed advantages
- Visible wilting within hours, browning in 2 days
- Rain-safe after only 3 hours
- Controls 90+ weed types including dandelion
Trade-offs
- Smaller 20 oz bottle covers less area than comparable concentrates
- Spurge may need follow-up treatment within 2 months
Grab it for: the fastest dandelion knockdown and cool-weather performance.
skip it if: you need to cover a huge area with one bottle and don’t mind slower results.
3. Fertilome (10525) Weed Free Zone (32 oz)
The gold standard for creeping charlie, with bonus power against dandelions.
Fertilome Weed Free Zone uses Dicamba (a selective herbicide that targets broadleaf weeds without harming grass) and controls over 80 broadleaf weeds. Many homeowners trust it specifically for creeping charlie (a stubborn ground ivy), and one reviewer called it “the only product on the market that truly kills creeping charlie.” Owners mention that even when rain hit the next day, sprayed weeds were wilted or dead after 5 days — the formula sticks well despite wet weather.
This 32-ounce concentrate is safe on most common grasses including Kentucky Bluegrass, Bermuda, Bahia, and Zoysia. It claims to show injury within hours, though some users found the recommended dose too weak for clover and suggest bumping the potency slightly (and adding a drop of dish soap for adhesion). The main trade-off is its premium price per bottle compared to basic 2,4-D products.
If creeping charlie has taken over parts of your lawn and dandelions are the secondary problem, this is your best weapon.
Strengths
- Top-tier performance on creeping charlie and dandelions
- Works through light rain after application
- Safe on many common turf grasses
Considerations
- More expensive per bottle than basic 2,4-D concentrates
- Some weeds may need a stronger mix than the label suggests
Best for: lawns battling creeping charlie and dandelions together.
Not for: budget-focused buyers who only need basic dandelion control.
4. Ortho WeedClear Lawn Weed Killer Ready-To-Use with Comfort Wand
No mixing, no measuring — just squeeze the wand and spray.
If the idea of mixing chemicals with a pump sprayer sounds like a hassle, Ortho WeedClear with the battery-powered Comfort Wand solves that instantly. It is a ready-to-use formula in a 1.33-gallon container that targets dandelion, clover, crabgrass, and creeping charlie. The wand delivers a consistent spray pattern and lets you spot-treat individual weeds without hauling a hose.
The trade-off is clear: it works slowly. Customers note it is “effective but slow,” taking weeks for weeds to fully die and up to a month to vanish. Unlike the SpeedZone that shows results in hours, this one requires patience. A few recent batches drew complaints for failing to kill weeds at all, though most buyers praise its ease of use and value versus hiring a professional service.
For small lawns and quick spot-spraying without any prep work, this is the most user-friendly option — just do not expect overnight results.
Easy wins
- Battery-powered Comfort Wand for zero-mix application
- Works on crabgrass in addition to broadleaf weeds
- Safe on multiple grass types like Fescue, Bermuda, and Zoysia
Downsides
- Slow-acting weeks to kill dandelions
- Some recent batches reported as ineffective
Reach for this if: you want the simplest spot-treatment experience with no mixing gear needed.
pass on it if: you need fast results or have a very large yard — a concentrate will go further cheaper.
5. Select Source Triad QC Select – 3-Way Herbicide with Quinclorac (Quart)
The three-in-one formula that tackles dandelions and crabgrass with a single spray.
Most broadleaf herbicides ignore grassy weeds. The Select Source Triad QC Select is different — it combines 2,4-D, Dicamba, and Quinclorac to kill both broadleaf weeds like dandelions and grassy weeds like crabgrass and dallisgrass. The Quinclorac ingredient absorbs through foliage and roots, making it a strong late-season cleanup choice for areas that missed a spring pre-emergent.
Reviewers point out it is “effective on Dallisgrass after 1-2 weeks,” turning the weed purple before it dries out. It is labeled for residential lawns, athletic fields, parks, roadsides, and golf turf (excluding tees, greens, and collars). The catch is that it works slower than SpeedZone — expect weeks rather than days for crabgrass to die — and it requires a surfactant (a sticking agent) for best results. Some users note limited effectiveness on wild violets.
If your lawn has both dandelions and crabgrass, this is the one broad-spectrum solution that handles both without needing two different products.
Why it stands out
- Three active ingredients target broadleaf AND grassy weeds
- Quinclorac is effective on crabgrass and dallisgrass
- Absorbed through leaves and roots for thorough kill
Keep in mind
- Requires surfactant and careful spot-spraying
- Slower action than dedicated broadleaf-only formulas
Choose this for: the rare yard where both dandelions and crabgrass are the problem.
Beware: if you only need dandelion control, a simpler 2,4-D product is faster and cheaper.
Understanding the Specs
2,4-D
The most common selective herbicide for broadleaf weeds. It mimics natural plant growth hormones, causing dandelions to grow uncontrollably and die. It is safe on most turf grasses when used at the correct rate.
Dicamba & Quinclorac
Dicamba is a heavier-duty ingredient that works well on tough weeds like creeping charlie and clover. Quinclorac is unique because it targets grassy weeds (crabgrass, dallisgrass) that 2,4-D alone misses. Products like Select Source Triad QC include Quinclorac for broader spectrum control.
Rainfast Window
The time after application that the herbicide needs to dry and absorb before rain can wash it off. SpeedZone EW claims a 3-hour rainfast window, while many basic formulas require 6 to 24 hours. A shorter window is valuable in rainy climates.
Concentrate vs. Ready-to-Use
Concentrates (like GORDON’s and SpeedZone) require mixing with water in a pump sprayer. They give you more control over the dose and cost less per square foot. Ready-to-use formulas (like Ortho WeedClear) come pre-mixed with a spray wand — easier to start, but you pay for the convenience in both price and slower coverage.
FAQ
Will this kill my grass if I spray it on dandelions?
How long does it take for the dandelions to die?
Can I use this before it rains?
How much concentrate do I mix per gallon for dandelions?
What is Quinclorac and do I need it for dandelions?
How often can I apply a broadleaf herbicide to my lawn?
Will these products kill creeping charlie or clover too?
Do I need to add dish soap or surfactant to the mix?
Final Thoughts: The Verdict
If you want one dependable pick, the broadleaf herbicide for dandelions winner is the GORDON’S Amine 400 because it covers an entire acre with a single quart, kills dandelions in under 5 days, and costs less per square foot than any other option here. If you want the fastest possible knockdown, grab the SpeedZone EW for visible results within hours. And for lawns battling both dandelions and crabgrass, the Select Source Triad QC Select with Quinclorac (a herbicide that kills crabgrass and broadleaf weeds) offers true broad-spectrum control.
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.
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