7 Best Organic Weed Killers – No More Harmful Chemicals!
Last updated: Apr 21, 2020
69Hours of Research
Weeds and grass grow fast in gardens. They make lovely gardens look unkempt and disgusting if you don’t regulate their growth. The truth is, it’s daunting to remove the weeds by hand. But you can invest in manual tools or chemicals like organic weed killers to eradicate the weeds and grass. Some of these chemicals clear weeds instantly, while others take a few days or weeks to deliver results. The best part is, most organic weed killers are manufactured from chemicals that are safe to humans and animals.
We spent more than 200 hours looking for the best organic weed killers in sites like Amazon. Our team interviewed several sellers and experts. The features we based our selection on include type, active ingredients, the weed it kills, and net content, among others. There are several types of weed killers like pre-emergent, post-emergent, and contact. You can get weed killers with active ingredients like ethanol, ammonium annotate, or glyphosate depending on the types of weeds in your garden. We have prepared a table, in-depth reviews of best weed killers, and a buying guide.
The Green Gobbler Vinegar Weed & Grass Killer eliminates all types of weed fast, whether it is clover weeds, moss, white clover, dandelions, and crabgrass. Green Gobbler Vinegar Weed & Grass Killer is manufactured from ethanol distilled from corn that makes it four times more powerful than traditional table vinegar.
Experts say Green Gobbler Vinegar Weed & Grass Killer is free from harmful chemicals like glyphosate, petroleum, sulfates, chlorine, dye and bleach. The sellers say it’s the best commercial organic weed killer. Experts recommend it for industrial, and agricultural use. Green Gobbler Vinegar Weed & Grass Killer targets sections like sidewalks, mulch beds, pavers, flowerbeds, farmlands, parking lots, driveways and barns for home-usage.
This organic weed killer for flower beds requires zero dilution. Fill your pump sprayer with 20% vinegar and spray it on the weeds using the trigger spray. Remember, Green Gobbler Vinegar Weed & Grass Killer kills plants non-selectively so don’t spray it on the other vegetation. Follow the safety precautions labelled on the container. The seller recommends spraying it on sunny days for the best results.
One user claims that this weed killer is safe to use in regions with lakes provided you create a buffer zone to bur the solution from getting into contact with the water. Several buyers don’t recommend spraying this weed killer on soil meant for growing plants. It will kill all the plants.
Overall, Green Gobbler Vinegar Weed & Grass Killer is safe, effective and inexpensive. However, it requires constant reapplication depending on the rate of growth of your weeds. It’s not safe for birds, humans, pets and fish.
The BioSafe Systems 7601-1 Weed Control Concentrate is a water-soluble chemical that is OMRI and EPA approved. It kills weed within 2 hours. The seller claims it covers up to 200 sq. feet. They also say that it can’t spread through the soil and harm the surrounding vegetation.
BioSafe Systems highlights that this chemical is ideal for weeds and grasses. It is non-selective like Green Gobbler Vinegar Weed & Grass Killer and kills all plants it comes into contact with. It suits all levels of gardeners.
The seller says BioSafe Systems 7601-1 Weed Control Concentrate is safe for people and pets since it is water-soluble. Some users say it lacks glyphosate that is toxic to bees. However, it will still harm bees if you spray it directly on them or if they get exposed to its residues on the plants or weeds.
One user claimed that this organic concentrate weed killer eradicated the roots of the weeds. He sprayed it on weeds and didn’t spot any growth one month later.
Experts recommend mixing 8 to 10% of the solution with water then spraying it from a trigger-spray bottle. Clear and rinse your bottles first.
Most customers protest that BioSafe Systems 7601-1 Weed Control Concentrate is not safe for humans, pets and the environment. Wear protective gears first.
Some customers say the smell of the soap is strong. Others say BioSafe Systems 7601-1 Weed Control Concentrate is expensive though concentrated.
Ortho GroundClear Vegetation Killer Concentrate is an effective weed killer that is 5x more powerful than the previous formula. It kills and prevents the growth of weeds up to 1 year. You can use it on your fence line, driveway, patios, gravel areas, and sidewalks.
The sellers say you can select one from ready-to-use concentrates with a comfort wand, and ready-to-use with sprinkler cap application methods.
Ready to use with a comfort wand is great for precise application. It requires zero mixings. With Concentrate application, you will apply the solution with an Ortho Dial N Spray, tank sprayer or sprinkler can.
The ready to use with a sprinkler cap selection is the best organic weed killer for pavers with cracks. Remove the top cap and tilt your bottle to spread it. One user claims that its coverage area is 3200 sq. feet.
Experts say the solution is super-concentrated though it dries up in one hour. It’s best to keep your pet away from the spots for at least 2 hours.
Most customers say Ortho GroundClear Vegetation Killer Concentrate kills anything it touches, including shrubs like Jupiter. Others say it does the job perfectly but require patience. Overall, Ortho GroundClear Vegetation Killer Concentrate is easy to use. Its container is also lightweight.
The Doctor Kirchner Natural Weed & Grass Killer is a great alternative to several toxic chemical weed killers. It’s manufactured from ocean water, soap and commercial food grade vinegar. Doctor Kirchner recommends it for small areas of land like gardens, walkways and courtyards.
It kills weeds in hours. Grass takes 12 to 24 hours to turn brown. Most users noted that they had to spray it twice to kill the weeds fast. However, it can’t eradicate underground roots.
Experts say Doctor Kirchner Natural Weed & Grass Killer does not affect the soil so you can begin planting after the area is dry. It’s friendly to pets, animals and humans.
The seller claims it has a long shelf life. The vinegar and ocean water retain their strength for years.
The amount of gallons that Doctor Kirchner Natural Weed & Grass Killer covers on your land depend on whether you use a hoarse or fine spray. One user said that 5 gallons covered around 400 sq. feet.
Its quart bottle comes with a sprayer, but you can invest in a separate sprayer with a pump handle for precision spraying. Spray the weeds until they are wet. Several customers despised the nozzles.
Most buyers also complained that Doctor Kirchner Natural Weed & Grass Killer spares some weeds. Other said it is expensive but worth the cost. Overall, most users champion for straight vinegar over this weed killer.
Natural Armor Weed and Grass Killer is a ready-to-use chemical that suits removing weeds in several areas. You can apply it on gravel areas, mulch beds, patios, parking areas, barns, pavers, rock walls, walkways, wells and water systems, fence lines and foundations.
It’s non-toxic and requires zero dilution. Experts say Natural Armor Weed and Grass Killer delivers results in 24 hours. They advise users to handle it with care. It’s great for use during calm sunny days. The seller says Natural Armor Weed and Grass Killer covers approximately 4000 sq. feet.
This weed killer comes with a trigger spray. You can use the pump sprayer. However, Natural Armor shuns users against using the hose attachment. They claim it will dilute the solution.
Most customers insist that it works perfectly on shallow weeds. It mostly kills small weeds but not the larger ones. One user said Natural Armor Weed and Grass Killer contains natural organic components that are friendly to wildlife and plants.
Experts note that this chemical is friendly to driveways and sidewalks. Most users said they spotted little to no discoloration.
Several customers said they loved the strong smell of vinegar. Some complained that the nozzle is ineffective.
Ortho Weed B Gon Weed Killer for Lawns is a user-friendly chemical that kills over 250 weeds including clovers, dandelions and broadleaf weeds among others. It eradicates the roots. Some of the grass it can eliminate are Bermuda grass, Bluegrass, Fescues, Ryegrass and Buffalograss, among others.
Ortho says Ortho Weed B Gon Weed Killer is friendly to lawns provided you apply it as directed. It covers both small and large pieces of land. 32 oz and One gallon of Ortho Weed B Gon Weed Killer covers up to 16,000 and 64,000 sq. feet, respectively. The seller recommends using this chemical with the Ortho N Spray or Tank sprayer.
Like Ortho GroundClear Vegetation Killer Concentrate, Ortho Weed B Gon Weed Killer for Lawns is available in several sizes.
You can get 1 gallon ready to use with a comfort wand, I gallon ready to use with a trigger spray or 24 oz ready to use. You can broadcast it with a garden hose pipe without mixing or measuring.
One user said that the plants don’t die instantly. They turn brown and wilt away after a week. He also said that it killed weeds but left the grass. Another customer claimed it took 2 to 3 weeks for the weeds to die. Some customers complained that its automatic sprayer is ineffective.
With 20% vinegar that is four times more powerful than ordinary table vinegar, the HARRIS Vinegar Weed and Grass Killer eradicate several types of weed from clovers, crabgrass, dandelion, moss and chickweeds among others. This weed killer does not eliminate the roots.
The seller says it is free from cancer-causing elements common in traditional weed killers. You can use this weed killer on botanical gardens, dog runs, kennels, driveways, walkways. It is non-selective. All the vegetation it comes in contact with turns brown and shrivels.
Experts claim HARRIS Vinegar Weed, and Grass Killer is OMRI certified. You can apply it two days before harvesting. They discourage using it in regions with temperature exceeding 75 degrees. The high evaporation rates reduce the rate of efficacy.
One user recommends 15% dilution for eradicating small weeds on walkways or driveways. You will get a trigger sprayer, but it’s worth investing in a pump sprayer if you intend to use this weed killer on the long-term. Few customers love that it is convenient.
Experts say that it can be heavy for users with wrist problems. One customer claimed that though it eradicates weed fast, the weeds reappear after some weeks. Its smell is overpowering.
Free from cancer-causing elements
Heavy for some users
Weeds reappear after a few weeks
Your garden, lawn, patios, driveways and walkways are the first impression of your home. You will tarnish your reputation if you leave them unkempt with several weeds and overgrowths. It’s your role as a responsible homeowner to regulate these growths frequently. You can use gardening tools like weed eaters, but experts champion for safe and effective options like organic weed killers. These chemicals come in several types that suit different levels of gardeners. In this guide, we will look at the benefits of organic weed killers, the features to consider when choosing one and the frequently asked questions.
Benefits of organic weed killers
Organic weed killers come with several benefits compared to gardening tools. First, they are cheaper than tools like weed eaters.
Some products deliver results as fast as one hour. Others may take 6 or 24 hours.
Most organic weed killers are friendly to the environment, pets and humans. They don’t harm neighboring plants except for some non-selective weed killers. Experts say that these chemicals kill a variety of weeds.
Features to consider when choosing the best organic weed killer
The truth is, buying an organic weed killer is hard, especially if you’re making purchases for the first time. These chemicals are made from different ingredients, so selecting the right one that blends with the soil in your garden can be daunting.
Some organic weed killers are meant for specific weeds.
In this section, we will look at several factors you can consider before making purchases like the type, the type of weed it kills, the toxicity levels, effectiveness and shelf life, among others.
There are several types of weed killers like pre-emergent, post-emergent, contact and systemic weed killers.
Pre-emergent herbicides choke the weed seeds before germination. It’s more of a preventive measure. The post-emergent weed killers eradicate weeds after they appear on the ground surfaces.
Experts say contact weed killer kills weed they come in contact with. They are applied to the leaves and stems. Contact weed killers often deliver results fast. However, the weeds can reappear after a few weeks so you will have to reapply after some weeks.
Systemic weed killers are applied directly on soil or foliage of weeds. The weeds absorb them through the roots. They are awesome for permanent eradication of the weeds.
Vinegar weed killers are not only cheap but deliver results in a few hours. They are made from vinegar with 5% acetic acids. Other weed killers like Green Gobbler Vinegar Weed & Grass Killer are manufactured from ethanol that is four times stronger than table vinegar.
Types of weeds it kills
Organic weed killers have unique components to eradicate different types of weed.
Natural Armor Weed and Grass Killer suffocate weed in 24 hours. You can pick a model that kills weeds instantly, but you will have to be patient if you select a product that kills weeds in12 to 24 hours or seven days.
The net content of organic weed killers varies according to manufacturers. Most products with high net content are expensive.
The instructions for use are labelled on the container. Follow them for best results. The label on the container has all the directions on how you will spray the products and the amount it can cover on your land.
Your safety should come fast since organic weed killers contain toxic ingredients that can harm pets and humans. You should invest in protective gears like gloves or masks to protect your face during the application. Use gumboots to protect your feet.
You can spray organic weed killers to the leaves of weeds and grass, or you can apply them directly on the soil. The weeds will wither after absorbing the chemicals. These organic weed killers are used on the soil to eradicate the roots of the weeds.
No, it’s not compulsory though surfactants make weed killers up to 3 times effective.
Weed organic killers have proved effective for ages. They eradicate the toughest weeds in driveways, walkways, lawns and patios.
First, you need to look into major factors we have highlighted in our buying guide like the type of weeds in your area, the coverage area, and the ingredients in the chemicals. Your budget will also come into play.