In this article, we review some of the best eco-friendly weed killers currently available, purely focusing on 100% natural products.
It’s a good feeling when plants you have nurtured start to sprout in your front yard or back garden. Colorful flower beds. Good ol’ lush green grass. Or a thriving vegetable garden.
Unfortunately, nature being what it is, you will always have to contend with one perpetual headache: weeds. They are part and parcel of caring for our outdoor spaces, no exceptions.
Weeds are unwanted plants that compete with our desired plants for space and nutrients. They compromise the aesthetics of our gardens and lawns and can also damage a sidewalk or driveway.
If left unchecked, weeds grow with reckless abandon, choking up our cherished plants.
It is not surprising then that the topic of how to eliminate weeds in our yards never goes out of season, in every sense of the phrase.
Now, for years, chemical weed killers have become part of many people’s garden and lawn care routine so much so that it is not surprising to find entire neighborhoods reeking of herbicides when the lawn service is done passing through.
Over the last decade or so, however, an increasing number of people are turning away from the use of chemical herbicides on their lawns and gardens.
This is largely driven by the growing awareness of the harmful, sometimes devastating, effects of these chemical agents on the health of people, animals and, of course, the environment.
Which brings us to the million dollar question…
Which is the Best Way to Kill Weeds Naturally?
Well, quite a number actually – some, age-old traditions that have been passed down the generations. Weeding by hand, for instance, use of salt, vinegar and mulching.
Other natural methods include use of boiling water, steam guns, cornmeal as a weed prevention technique; vodka even!
The problem with these methods as is has to do with their effectiveness in getting rid of weeds. Otherwise this wouldn’t be a topic at all.
That is where environmental-friendly commercial weed killing natural products come in.
Below, we look at some of the best eco-friendly weed killers being sold commercially.
Best Eco-Friendly Weed Killers Reviewed
Natural Armor Weed and Grass Killer
Starting us off is a product widely considered the top eco-friendly weed currently available.
That’s largely in part due to its lack of glyphosate, a herbicide that accounts for the potency of majority of commercial weed-killing products. Glyphosate has come under intense scrutiny lately due to its potential harmful effects on its users and the environment.
Being a non-glyphosate concentrate, Natural Armor is safer than most other products you will find. This is a safe weed killer that is non-toxic and very friendly to the environment.
The all-natural concentrate is free of chemicals and poisons and does not leave any hazardous compounds behind – nor does it contaminate your home, garden or lawn.
This also means it cannot harm pets, fish, birds and other mammals, not to mention ground water.
The downside to being a non-glyphosate product means a lot of products are not very effective. But this is what makes Natural Armor even more remarkable.
Its active ingredient is acetic acid (vinegar), mixed with some citrus elements (which gives it a nice smell), as well as sodium ingredients, glycerine, essential oil and water.
In terms of efficacy, effects such as browning and wilting of weeds can be seen within just a few hours of application. But you will want to give it about a week for the weeds to mellow out if you want to pluck them out complete with their roots.
One disadvantage you will find with Natural Armor Weed and Grass Killer is that it is a non-selective natural weed killer, although that also rings true for every other product on this list.
This means you will need to apply the product directly on the weeds whilst excluding your plants as they too could be affected. That takes more effort than some of us would ideally want, especially when working on lawns.
Overall, this family-owned product does a great job of suppressing weeds.
The customer support is top-notch and most importantly, should you find the product not working, the company has a 100% money-back guarantee, as one buyer acknowledged.
- 100% natural product
- Efficacy has been tested and proven to be more than satisfactory
- No harmful effects on mammals, fish and the environment
- Money-back guarantee
- Great customer support
- Non-selective weed killer so need to spray the base of the weeds individually
Doctor Kirchner Natural Weed Killer
Doctor Kirchner is another top contender for the best eco-friendly weed killers crown.
This is an all-natural non-selective contact weed killer that can effectively rid your yard of all types of weeds and grasses. It works best when the weeds and grasses have just emerged, so timing will be key with this one.
Since it is all-natural, Doctor Kirchner does not contain glyphosate or any dangerous chemicals. Its ingredients are commercial strength food-grade vinegar, soap and ocean saltwater. The fact it doesn’t require any mixing on your part makes it very convenient.
The absence of glyphosate doesn’t mean it is a weak natural herbicide. It is fast-acting and in line with the manufacturer’s claim that most weeds will wither within hours of application, one Amazon customer admits to seeing weeds shrivel within half an hour of spraying.
However, grassy weeds take 12 to 24 hours to turn brown.
One thing you will also like about Doctor Kirchner Natural Weed Killer is that it is very practical even during the wet season or when watering your plants or lawn in that its rainproof protection is triggered within 30 minutes to an hour.
That is what you want in a weed killer given weeds largely spring up in wet conditions.
Of course, being an organic natural product, this weed killer does not pose any harm to people, pets and the environment.
But the fact it is non-selective means you have to be careful in the application, otherwise you risk affecting the health of your other plants or lawn. This is why it works best on mulched areas, gardens, borders, hardscape, pool decks, and pavers with weeds and grasses you want to get rid of.
Overall, though, this is one of the best eco-friendly weed killers around without zero negative impact on people, animals and the environment.
- 100% natural herbicide
- Works on all types of grasses
- Efficacy is tried and tested
- Safe for the environment, people and pets
- Unmatched customer service
- Not ideal for lawns
Green Gobbler Organic Weed Killer
Green Gobbler has been around for quite a while, a time during which it has become a go-to choice for homeowners and landscapers who need a product to keep their garden and lawn healthy without posing any risk to the ecosystem.
Green Gobbler Organic Weed Killer contains 20% vinegar which is 5x stronger than regular table vinegar.
The formula, which also contains ethanol distilled straight from corn grain, is potent enough to desiccate and eliminate all grasses and weeds, but without leaving harmful chemicals behind that would harm the soil, water systems, mammals and fish.
It is a non-toxic weed killer free of glyphosate, sulfates, phosphates, chlorine, petroleum solvents, dye, bleach and other deteriorative agents.
Green Gobbler is approved for organic use by OMRI (Organic Materials Review Institute) giving it a clean bill of health to use anywhere weeds are not desired without the risk of contamination – farmland, mulch beds, flower beds, barns, sidewalks, driveways you name it.
As proof of its efficacy, the manufacturer offers a no-questions-asked money-back guarantee in the event you are not satisfied with the results.
However, you might need to boost its effectiveness by adding a surfactant such as orange oil or dishwashing soap.
It works fast especially on clover weeds, dandelion, crabgrass and white clover, but can also be used against oxalis, creeping Charlie and musk thistle.
This natural herbicide does not need any diluting as it comes ready to use.
- Broad spectrum weed killer
- Organically certified by OMRI
- Free of harmful chemicals
- Money-back guarantee
- Might need a surfactant to increase its effectiveness
- It is non-selective so spraying on desired plants and healthy plants could kill them
Other Notable Mentions
The market is not exactly brimming with natural weed killers – or at least ones worth your money.
But in addition to the above three, other options you should consider include:
Biosafe Weed Control
An OMRI-listed product that burns down annual and perennial broadleaf grasses and weeds in a few hours without posing any danger to people, pets and the environment.
See on Amazon:SaleBioSafe Systems 7601-1 BioSafe Weed Control Concentrate, 1-Gallon
- Kills weeds and grasses within two hours
- Will not migrate through soil to harm surrounding plants of future growths
- Gardens may be re-seeded or planted four days after use
- Organic approved by OMRI, EPA approved
- 2 fl. oz. covers 200 sq. ft.
Espoma Organic Weed Preventer
Another all-natural product worth your consideration.
It employs a pure organic corn-gluten formula to inhibit the growth of weeds and is safe for kids and pets, not to mention the environment.
It is also rainproof.
See on Amazon: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
- Granulated for easy application, Espoma Organic Weed Preventer provides long lasting nitrogen for a thicker, greener lawn
- Children and pets can safely play on lawn after application.
We know, finding a natural weed killer that is both effective and safe for the environment can be a pain.
But these five products are the best eco-friendly weed killers on the market and you will rarely go wrong with either.