Safest weed killers: Top 7 herbicides to use on your lawn

It is inevitable to use weed killers, especially when a few organic options fail to kill the weeds on your lawn. For most homeowners, the most practical solution, in this case, is to buy a commercial chemical spray and apply it to the unwanted plants.

But things can quickly go wrong, particularly when you fail to understand how the herbicide works or the ingredients used to make it.

That is why buying the safest weed killers should be your priority regardless of the type of weeds in your yard.

Going for the safest weed killers is crucial because a stronger concentration of chemicals in a product does not mean it will work better.

You may have to spray it several times since the plants will grow at some point, instead of going for a one-time application.

Furthermore, if you have children and pets, you should use pet-friendly herbicides on your lawn, preferably those that have all-natural, organic, or food-grade ingredients.

How do you use weed killer safely around children and pets?

When you are using a lawn care product around your children and pets, you need to exercise a little caution.

Pulling weeds

The first step starts by reading the label on the herbicide before opening its container. Know whether it is safe to use around kids or domestic animals.

Secondly, check to see if you need to dilute the weed killer to make it less toxic to humans and dogs or cats when they come into contact with it.

If you are using a chemical weed killer, do not dump any excess. Use the recommended amount for the size of your lawn.

Understand that many chemical herbicides provide a safe and effective solution for controlling unwanted plants in your yard. But that will depend on how you follow the instructions on the label.

What are some of the safest weed killers for a lawn?

Weed KillerIngredientsPrice
Green Gobbler Vinegar Weed & Grass Killer- 20% vinegar
Doctor Kirchner Natural Weed & Grass Killer- Ocean saltwater
- Vinegar
- Soap
Calyptus 45% Pure Vinegar- 45% vinegar
Natural Armor Weed and Grass Killer- Vinegar
Natural Elements Weed Killer- Vinegar
ViNEGAR Weed & Grass Killer- 20% Vinegar
Preen 2464224 Natural Weed Preventer- Corn Gluten Meal

These are the safest herbicides to use on your lawn:

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1. Green Gobbler Vinegar Weed & Grass Killer

Green GoblerThe Green Gobbler Vinegar Weed & Grass Killer is an all-natural and organic herbicide made from corn and 20% acetic acid (vinegar).

It is useful for eliminating dandelions, oxalis, clover, chickweed, thistle, and general broadleaf.

You can apply it on mulched flower beds, decks, patios, pavers, fence lines, pool, areas, and parking lots, among other places.


  • It is safe to use around pets.
  • It gives results within 24 hours.
  • Useful for eradicating both grassy weeds and broadleaf plants.


  • It is non-selective and needs to be applied directly on weeds

You can buy the Green Gobbler Vinegar Weed & Grass Killer if you want a herbicide that will eradicate unwanted plants within 24 hours.

2. Doctor Kirchner Natural Weed & Grass Killer

Dr Kirchner weed killerDoctor Kirchner Natural Weed & Grass Killer is a natural herbicide whose ingredients include food-grade vinegar, soap, and ocean saltwater.

As a non-selective, pet safe weed killer, it will destroy any vegetation that comes into contact with it.

You can apply it to courtyards, walkways, or gardens.


  • It can kill both grassy weeds and broadleaf plants.
  • You can use it as a post-emergent or pre-emergent herbicide.
  • It can kill unwanted plants within 24 hours.


  • It is non-selective and will kill the grass on your lawn upon contact.

Doctor Kirchner Natural Weed & Grass Killer is ideal for homeowners that want to eradicate plants that are challenging to eliminate, such as shrubs, as well as control unwanted weeds from growing.

3. Calyptus 45% Pure Vinegar

Calpyptus weed killerThe Calyptus 45% Pure Vinegar is an outdoor and household cleaning product. What makes it a weed killer is the concentration of vinegar at 45%.

The formulation is powerful enough to eradicate tough, waxy weeds and leafy plants within 24 hours.

You can apply it in all areas you want to eliminate unwanted plants.


  • It is all-natural, made from corn.
  • You can use it either diluted or undiluted.
  • It will eliminate both grassy weeds and broadleaf plants.


  • It is too strong for your lawn and may brown the grass.

The Calyptus 45% Pure Vinegar can act as a useful weed killer. It is a safe grass killer that can also eliminate hundreds of other plants because of its high concentration of vinegar.

4. Natural Armor Weed and Grass Killer

Natural Armor weed killerThe Natural Armor Weed and Grass Killer is a herbicide that can eradicate over 250 types of weeds and grasses.

Its ingredients include sodium chloride, Sodium lauryl sulfate, and citric acid.

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It is applicable to use in a variety of areas, including fence lines, mulch beds, shrubs, flower beds, patios, parking areas, and more.


  • It contains natural ingredients that are safe for pets.
  • It can kill weeds within 24 hours.
  • Comes ready to use in a sprayer.


  • Since it can kill many types of weeds and grasses, it can also discolor your lawn.

The Natural Armor Weed and Grass Killer is the best product to use for homeowners that want a herbicide that will eradicate different types of unwanted plants faster.

5. Natural Elements Weed Killer

Natural Elements weed killerThe Natural Elements Weed Killer is one of the many pet-safe herbicides you can buy for your lawn.

Water, vinegar, sodium chloride, and sodium lauryl sulfate are the four ingredients that make up the product. Its formulation is powerful enough to eliminate most grasses and broadleaf weeds.

You can use it around lawns, flowerbeds, mulched areas, landscaping, and tree, among others.


  • Useful as both a post-emergent and pre-emergent herbicide.
  • It is a ready-to-use, hassle-free, no-mix formula.
  • It will wilt weeds within 24 hours in hot temperatures or five days in colder temperatures.


  • It will kill your lawns unless you are trying to eliminate the grass.

As a homeowner, you can buy Natural Elements Weed Killer to keep your yard looking attractive by eliminating unwanted plants.

6.ViNEGAR Weed & Grass Killer by Energen

Energen VinegarThe 20% Vinegar Weed & Grass Killer is a standard, non-selective, all-natural, and organic herbicide.

You can use it on driveways, concrete, sidewalks, pavers, parking lots, fence rows, and roadways. As a fast-acting product, it will eliminate any grasses or broadleaf plants that come into contact with it.

Its 20% concentration of vinegar is safe when used according to the directions on the label.


  • It does not contain glyphosate.
  • Safe to use for agricultural, commercial, industrial, residential, and applications.
  • It kills weeds on contact.


  • Relies upon the sun for results, It does not work as well in the shade.

If you want a safe weed killer that can control annual weeds and grasses, consider the 20% Vinegar Weed & Grass Killer.

7. Preen 2464224 Vegetable Garden Natural Weed Preventer

Preen weed preventerThe Preen 2464224 Vegetable Garden Natural Weed Preventer is a pre-emergent herbicide for preventing the germination and growth of new weeds on your lawn.

It is a granular product that contains corn gluten meal as an active ingredient.

When applied on your lawn, it will prevent crabgrass, dandelions, clover, and other common weeds from growing.


  • It is ideal for controlling annual weeds.
  • It is all-natural and safe for pets.


  • It is not a fast-acting herbicide for lawns.

If you are looking to prevent the growth of weeds before designing your lawn, the Preen 2464224 Vegetable Garden Natural Weed Preventer is the best product for you.

How soon can you use the lawn after spraying a weed killer?

Depending on the type of product you are using, you may use your lawn immediately after spraying or applying a weed killer.

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For example, your kids and pets may use the yard after treating it with all-natural and organic herbicides.

But if you have used chemical herbicides, use the lawn after it has dried. But to be more precise, give it at least 48 hours before allowing your pets or kids to use it.

Also, read the label instructions regarding re-entry times after the application of the weed killer.

Will granular or liquid weed killer work better?

When shopping for the safest weed killer, you will encounter either granular or liquid (spray) weed killers. Go for the spray option if you are dealing with overgrown, difficult-to-remove weeds.

The liquid herbicide will soak the plants through foliage and offer a practical solution for eliminating them.

Granular herbicides are better as a pre-emergent method of weed control. You can use them before the plants germinate to ensure they do not grow on your lawn.

But it is better to go for liquid weed killer instead of granular since the former will stick well on unwanted plants.

Factors to consider before purchasing the safest weed killers

When shopping for a non-toxic weed killer, pay attention to the following factors:

1. Type of Weeds

Weeds can either be broadleaf or grassy plants. Some herbicides have formulations for only killing one specific type and not the other.

Therefore, buy a product that can eradicate all weeds on your lawn.

2. Ingredients

The ingredients that make up the weed killer can tell you whether it is safe to use on your lawn or around kids and pets.

While you can buy those that contain glyphosate, they may not be safe depending on the concentration of the chemical. But consider a herbicide that has all-natural or organic components.

3. How long it takes to kill weeds

Some weed killers can eradicate unwanted plants within hours. Others can take weeks to work.

Make sure to choose those that offer results within the shortest time.

4. Application

You can either buy granular or liquid weed killers. The application will depend on how you want to eradicate the plants.

A spreader is the best for granular products, and a sprayer is ideal for liquid herbicides.


If you are looking for the safest weedkillers, consider products that have all-natural or organic ingredients. The ingredients to pay attention to are sodium chloride, vinegar, and soap, among others. Also, choose a herbicide that will eliminate common weeds such as dandelions, crabgrass, and oxalis, among other grassy weeds and broadleaf grasses.