6 Most Effective Organic Weed Killers of 2020

Last update: Nov 24, 2020

The last thing you want in your garden is wild grass and weeds that ruin your plants. There are many ways and substances you can use to get rid of them, it’s always better to apply something environmentally friendly, like organic recipes. That’s why in this post, you will learn how to choose the most effective organic weed killer.

Here are the most effective organic weed killers you can buy in 2020:

  • Best Overall: Green Gobbler Vinegar Weed & Grass Killer
  • Best For Fence Line: Natural Armor Weed and Grass Killer
  • Best For An Immediate Result: ECO Garden PRO
  • Best For American Burnweed: Energen Carolina LLC 20% Vinegar Weed & Grass Killer
  • Best For Flower Bed: Doctor Kirchner Natural Weed & Grass Killer
  • Best For Dandelions: OrganicMatters Natural Weed Killer Spray
6 Most Effective Organic Weed Killers
Best Overall
Green Gobbler Vinegar Weed & Grass Killer
    Best For Fence Line
    Natural Armor Weed and Grass Killer
      Best For An Immediate Result
      ECO Garden PRO
        Best For American Burnweed
        Energen Carolina LLC 20% Vinegar Weed & Grass Killer
          Best For Flower Bed
          Doctor Kirchner Natural Weed & Grass Killer
            Best For Dandelions
            OrganicMatters Natural Weed Killer Spray

              Best Overall: Green Gobbler Vinegar Weed & Grass Killer

              Green Gobbler Vinegar Weed & Grass Killer
              Green Gobbler Vinegar Weed & Grass Killer
              9Outstanding
              Pros
              • 4x Stronger than the traditional table vinegar – contain 20% acetic acid
              • Multifunctional and versatile – able to kill all types of broadleaf weeds on contact and various applications
              • Extremely safe to use – get OMRI approval for organic use
              • Reliable - backed by a 30-day money-back guarantee
              Cons
              • Wish it came with a spray bottle

              Let’s kick things off with this Green Gobbler Weed & Grass Killer.

              It is made of 80% water and 20% acetic acid. The biggest advantage of this fluid mixture is no odor so that you, your family, pets, neighbors, and other animals will not be bothered by this product.

              Meanwhile, its weed eliminating capabilities are known as the easiest and fastest in this realm, which is 4x stronger than the traditional table vinegar (5%), and it can kill all types of broadleaf weeds on contact.

              Don’t worry about its safety because the entire product is strictly made from ethanol distilled from corn grain. Importantly, it gets OMRI approval for organic use, meaning that you can use it anywhere, from barns, farmlands, parking lots, gardens, to concrete, sidewalks, and driveways.

              The best thing is it’s backed by a 30-day money-back guarantee.

              Green Gobbler Vinegar Weed & Grass Killer Specifications

              Size

              1 Gallon

              Ingredients

              20% acetic acid

              Highlight Features

              Contain 20% acetic acid
              Get OMRI approval for organic use
              Backed by a 30-day money-back guarantee

              Verdict

              The Green Gobbler Vinegar Weed & Grass Killer brings home our Best Overall Pick award for its unmatched performance at a very budget-friendly price point.

              Best For Fence Line: Natural Armor Weed and Grass Killer

              Natural Armor Weed and Grass Killer
              Natural Armor Weed and Grass Killer
              9Outstanding
              Pros
              • Versatile applications, including fences
              • Fast-acting – only within hours to deliver a noticeable result
              • Trustworthy – backed by a 100% refund guarantee
              Cons
              • No spray bottle included
              • Not kill Bermuda grass optimally – its roots may be still alive

              Another worth-trying organic weed killer!

              Its ingredients include acetic acid, citrus ingredients, sodium ingredients, essential oils, glycerine, and water, with the capability of killing over 250 weed and grass types on contact. As 100% naturally made, it can be used anywhere wanted, like fences, and the product is completely pet- and human-friendly.

              Compared to other counterparts at the same price range, we find that it gives a bit faster acting (within hours), so if you want something more effective and giving better results shortly thereafter, this is it.

              Rest assured if this is your very first buy from the brand, it is backed by a manufacturer’s 30-day refund guarantee if you don’t feel 100% satisfied with it.

              Natural Armor Weed and Grass Killer Specifications

              Size

              128-Ounce Gallon

              Ingredients

              Acetic Acid (vinegar)

              Citrus Ingredients

              Sodium Ingredients

              Essential Oil

              Glycerine

              water

              Highlight Features

              Backed by a 100% refund guarantee
              Fast-acting

              Verdict

              The Natural Armor Weed and Grass Killer is our top choice for anyone finding the most effective natural weed & grass killer that takes a much shorter amount of time for acting.

              Best For An Immediate Result: ECO Garden PRO

              ECO Garden PRO
              ECO Garden PRO
              8Good
              Pros
              • 100% safe for groundwater – 100% biodegradable & contain no phosphate
              • You’ll see results within 24 hours after spraying
              Cons
              • Not come with a sprayer
              • There is a strong odor presenting for around 5 minutes after applying

              The next pick is ECO Garden PRO!

              Designed with you, your family, pets, and other animals in mind, it is virtually harmless to use for killing weeds and grass around the house. It is also certified to contain no phosphate and be 100% biodegradable.

              But that doesn’t mean for ineffective weed-killing performance. The product, in fact, gets tons of compliments for its fast-acting that can give immediate results within 24 hours because it contains only the best natural weed killer ingredients, such as fermentation-derived co-factors, white vinegar, and more.

              Now, which types of weed and grass can this herbicide kill? Aside from general ones, it is able to eliminate the optimally white cover, moss, crabgrass, thistle, dollar weed, chickweed, clover, and dandelions.

              ECO Garden PRO Specifications

              Size

              1 Gallon

              Ingredients

              natural white vinegar, organic rock salt, biodegradable plant activators, and fermentation-derived co-factors

              Highlight Features

              100% biodegradable & contain no phosphate
              Show results within 24 hours after spraying

              Verdict

              The ECO Garden PRO has been our Top Pick for Immediate Results since 2017 because up to now, there’s no competitor that can beat it off.

              Best For American Burnweed: Energen Carolina LLC 20% Vinegar Weed & Grass Killer

              Energen Carolina LLC 20% Vinegar Weed & Grass Killer
              Energen Carolina LLC 20% Vinegar Weed & Grass Killer
              8Good
              Pros
              • Able to kill American burnweed within a few hours
              • Easy to use – come as a spray bottle
              Cons
              • It has a strong smell

              If you are living in Allentown, Pennsylvania, and the surrounding regions, chances are that your yard frequently has an uninvited guest – American burnweed. It’s also known as one of the fastest-growing and hardest weed types to eliminate.

              The good news is this Energen Carolina LLC can kill them optimally.

              The extra amount of strong vinegar does work! It only takes a few hours (at least in our case) to see a weed is a toast. And, the product is also easy to use - You can spray an area or direct a stream of it to one weed while preserving your lawn if wanted.

              As a huge plus, spraying it on the corner of our front porch has stopped the bats from roosting.

              Energen Carolina LLC 20% Vinegar Weed & Grass Killer Specifications

              Size

              1 Quart

              Highlight Features

              Come as a spray bottle
              Containing an organic acid for safe yet effective use
              Quick-acting

              Verdict

              If you’re looking for a great alternative item to kill American burnweed to avoid the use of chemicals, this fits the bill.

              Best For Flower Bed: Doctor Kirchner Natural Weed & Grass Killer

              Doctor Kirchner Natural Weed & Grass Killer
              Doctor Kirchner Natural Weed & Grass Killer
              8.6Great
              Pros
              • Able to be used around plants and flowerbeds - contain no hormone-disrupting chemicals, glyphosate, or mixing
              • Easy to use & controllable – spray bottle design
              • Eco-friendly - new ECO-Pour jug
              Cons
              • A bit expensive

              The Doctor Kirchner Natural Weed & Grass Killer contains no hormone-disrupting chemicals, glyphosate, or mixing, but just soap, commercial-strength food-grade vinegar, and ocean saltwater to kill weeds. In other words, it doesn’t translocate so that you can use it around plants or flower beds.

              The best part is this herbicide does not affect the soil so you can plant seeds from the nursery with more peace in mind.

              The spray bottle design also makes the applying much easier and more controllable.

              We also like its packaging with the aim of using no-glug spout and less plastic for more eco-friendliness.

              Doctor Kirchner Natural Weed & Grass Killer Specifications

              Size

              1 gallon

              Ingredients

              ocean saltwater, commercial strength food-grade vinegar, and soap

              Highlight Features

              Contain no hormone-disrupting chemicals, glyphosate, or mixing
              Spray bottle design
              Spray bottle design

              Verdict

              The Doctor Kirchner Natural Weed & Grass Killer will definitely be a great choice to maintain a grass- or weed-free garden with no harms to your flower beds.

              Best For Dandelions: OrganicMatters Natural Weed Killer Spray

              OrganicMatters Natural Weed Killer Spray
              OrganicMatters Natural Weed Killer Spray
              8Good
              Pros
              • Heavy-duty – able to kill over 250 types of weeds and grass
              • Fast-acting – within 24 hours
              • Dependable - a 30-day money-back guarantee
              • No unpleasant odors after spraying
              Cons
              • Not get to the root of weeds
              • Require using a huge amount for optimal results

              Just like other heavy-duty weed sprayers, this can kill over 250 types of weeds and grass, giving results in no longer than 24 hours. Plus, it is backed by a 30-day money-back guarantee.

              Making it different from the rest is it specializes in broadleaf types, such as dandelions and crabgrass.

              As it contains no glyphosate but just high-strength natural ingredients, it doesn’t affect the soil. A big bonus is it only has strong vinegar and cinnamon scent after spraying, which is not really too unpleasant to smell.

              OrganicMatters Natural Weed Killer Spray Specifications

              Size

              128 oz. Gallon

              Ingredients

              vinegar, sodium chloride, clove oil, lemon juice, sodium lauryl sulfate, and water.

              Highlight Features

              Able to kill over 250 types of weeds and grass within 24 hours
              A 30-day money-back guarantee;

              Verdict

              If you’re looking for the most effective organic weed killer for dandelions, try this.

              How To Choose The Most Effective Organic Weed Killer?

              List of Ingredients

              There are only a few ingredients for organic herbicides, the most popular of which is gluten meal. Apart from that, here are some other ingredients you should look for when choosing an organic weed killer:

              • Vinegar/acetic acid
              • Herbicidal soaps that contain long-chain fatty acids
              • Citric acid
              • Essential oils like summary savory, clove, red thyme, and cinnamon
              • D-limonene often found in lemon, orange, and lime

              Types

              Basically, you should choose from the following four types of organic weed killer or 4 different recipes.

              Vinegar+salt

              This is among the most widely used and reliable ways to kill weeds. You need 1 gallon of apple cider vinegar, 1 cup of table salt, and 1 tablespoon of dish wash liquid.

              All you have to do is mixing all these ingredients together and shake well. When you need to use it, just fill the mixture in a spray bottle and spray it on grass and weeds.

              Bleach+dish wash liquid+salt

              This mixture helps you kill hardy weeds within a week. You need bleach, 1 cup of salt, and 1 tablespoon of dish wash liquid.

              Mix all these ingredients together and make sure the salt is dissolved completely. You can spray it directly on weeds and wait at least a week to use it again.

              Borax

              This mixture kills weed with the sodium borate in the powder. You just need to mix the borax powder with water then spray it directly on the weeds.

              Vinegar+salt

              This homemade recipe is really easy to make. You need 1 gallon of 20% white vinegar mixed with 1 cup of Epsom salt. Put the mixture in a spray bottle and use it directly on the weeds and wait for about two weeks.

              Shelf Life

              Each time you use a weed killer, you will likely use only a small amount of what you have made. Besides, you often have to wait around one week or more before using it again. Therefore, it’s important to make sure the mixture remains effective after a long time.

              Which Brands Make The Most Effective Organic Weed Killer?

              Green Gobbler

              Despite being small, this is one of the best brands to go to when you need a healthy product. Its products are not just organic and safe to use but also powerful and will help you get rid of weeds.

              Natural Armor

              This brand makes products with passion and dedication. Here, you will find high-quality weed killers that are all-natural and very effective.

              ECO Garden Solution

              ECO Garden Solution makes friendly week killers that are safe to your pets and your kids. Its products are also non-toxic, biodegradable, and formulated with GRAS ingredients.

              Energen Carolina

              Founded in 1976, this is a long-standing, reliable brand for organic weed killers. It’s earned a reputation for offering only the best products in the market.

              FAQs

              How does organic weed killer work?

              When you spray an organic weed killer on weeds, the organic components damage cell walls or remove the plant cuticle, which causes the weed to lose water and die.

              Are organic weed killers safe?

              Yes, they are safe for humans. You can also find weed killers are safe for your pets too.

              How long does it take for weeds to die after spraying with vinegar?

              The average time is 2 weeks, but it can be up to 4 weeks. But within 6 hours after spraying, you will start to see the first signs, like the leaves turn yellow.

              Does baking soda kill weeds?

              Yes, it does, you can simply toss baking soda over the weeds.

              Which is better: spraying weeds or pulling weeds?

              While both methods effectively kill weeds, pulling can take you a whole lot of time to finish. On the other hand, spraying is much easier and quicker to do. So, spaying seems like a better choice.

              Conclusion

              This is the end of our comprehensive guide on choosing the most effective organic weed killer. We hope that you will find it much easier to pick the right mixture for removing weeds in your garden.

              If you have other questions or need more guidelines, come back here and we’re always willing to help.


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