“Will Clorox kill grass or will it cause grass to permanently or just temporarily disappear?” is a question that is common among garden owners.

Will Clorox Kill Grass

In this article, you will learn whether Clorox can permanently damage your lawn and figure out if the soil can recover from the damage.

Discover how this kind of bleach can kill or damage grass and weeds.

Will Applying Clorox Kill Grass?

Yes, applying Clorox will kill grass. Clorox bleach kill grass, whether it’s diluted or undiluted. However, diluted bleach will cause lesser damage than undiluted Clorox. Because of the dilution, the neutralization of bleach occurs, and the level of chlorine and alkalinity are lessened.

Diluted bleach can almost cause no harm to the grass because of the neutralized chemical contents, but diluted Clorox can still cause damage to the grass and plants.

Clorox bleach kills different types of grass, such as Bermuda grass, crabgrass, and Johnsongrass. When Clorox is applied directly to Bermuda grass, it will burn the plant and later on kill it completely. The same is true with crabgrass. The direct application of Clorox will kill crabgrass, but not with just a single application.

If you intend to kill crabgrass, you need to apply another batch of bleach. Another type of grass is the Johnsongrass. Undiluted Clorox can kill this type of plant and damage the adjoining grass.

– Effects of Clorox on Grass

Clorox will be able to kill any type of grass. Killing unwanted grasses is essential for lawn care. If you’re looking for an effective grass killer, you can use Clorox bleach weed killer. Killing weeds and grasses is an easy job for Clorox bleach, which can easily kill grasses without any hassle.

Effects of Clorox on Grass

However, to be able to effectively kill grass using Clorox, you will need to use undiluted Clorox bleach. Other products and outdoor bleaches may not be able to effectively kill grass because they don’t contain sodium hypochlorite.

If the substance applied to your lawn contains sodium hypochlorite, like Clorox, it will burn the plants or grass if it’s directly applied. Although some plants find small doses of chlorine beneficial, chlorine in general is still harmful to plants and grasses. If the grass is overwhelmed with chlorine content, it will not be able to absorb nutrients, and this will eventually cause the death of the grass.

Clorox is very harmful to plants because of its 12.5 pH level. This level of pH can affect the growth of grasses. Clorox bleach dissolves easily into soil, but it doesn’t change the pH level of the soil itself.

Clorox easily breaks down into portions of water and salt when applied to soil and plants. Salt can hinder the growth of a plant and kill it. If the bleach is not applied frequently, it can’t kill the grass. However, if Clorox bleach is often used, it will make way for the build-up of sodium in the soil and eventually kill the grass on your lawn.

– Results of Clorox on Grass Growth

Grass won’t grow back if the area was spilled with Clorox bleach. The unwanted weeds permanently vanish from the area where the chlorine bleach was spilled. Clorox will break down into water and salt particles once it’s spilled on the soil.

If there are salt particles in the soil, the salt will destroy the absorbing abilities of the soil. The soil will no longer be able to absorb nutrients, and the plants or grass planted will eventually die.

However, if you want to grow new grass on the area, you can still do so once the soil recovers from the spill. However, the recovery of the soil will depend on the pH level of the bleach and the amount of bleach spilled on the soil. The soil’s recovery could take a whole year depending on the amount of bleach spilled.

Always remember that the pH level of healthy, recovered soil should be 5 to 7. To check if your soil is fully recovered, try planting a few seeds. The seeds should grow if the soil is fully recovered.

– Permanent Death of Grasses From Clorox Bleach

Now, if you are wondering if grasses die permanently after being doused with Clorox, then the answer is affirmative. Grass permanently vanishes if you use undiluted bleach. Clorox bleach permanently kills grass and kills weeds that grow on your lawn.

Spray or spill a sufficient amount of bleach on the grassy areas that you want to clear. But take note that you should be careful with applying bleach as it is extremely harmful, and it can damage other plants in your lawn and garden.

– Grass Death After Exposure to Clorox

Exposure of grass to bleach won’t cause them to die immediately. It usually takes up to four days before the grass dies. The exposure of the grass to a homemade weed killer like bleach lessens the nutrients in the soil, so the grass dies later on.

Grass Death After Exposure to Clorox

Thus, using bleach the wrong way can cause serious damage and negative effects on our environment.

– Using Clorox To Kill Grass

If there is a need to kill the grass on your lawn or if you want to practice weed control and are looking for effective weed killers, it is recommended that you use Clorox bleach. There are simple steps to follow that will surely exterminate the unwanted grasses in your lawn.

Using Clorox To Kill Grass

Here are a few steps to kill grass with bleach

  1. Look for the area where you want to kill the unwanted grasses.
  2. Now, get a spray bottle, and then carefully pour undiluted bleach into it. Always make sure to seal the bottle tightly to avoid unwanted spillages. To avoid overflowing the bottle, only fill about three-quarters of the way, and always make sure to tightly screw the bottle cover.
  3. Spray the bleach on the grassy areas where you want to kill the grass. Focus on spraying the leaves and the roots. Be extra careful with spraying on areas beside concrete and pavements because the bleach can stain them. If you accidentally sprayed or spilled bleach on an area, get a lot of water, and immediately wash the place to rinse the product off the area
  4. The effectiveness of bleach as a grass killer could become evident in about 2 to 3 days when the grass completely dies. Once the grass turns brown, you can now pull it out and look for its remains to dispose of it safely.
  5. If you can still see unwanted grasses and weeds thriving on your lawn or garden, simply repeat the Clorox bleach application.


If an area is spilled with Clorox, will grass grow back after bleach, and will diluted bleach kill plants? These are questions commonly asked by gardeners, and after reading this article, you finally know the answer.

Let’s recap how Clorox can effectively kill grass and weeds:

  • Clorox will kill grass and other plant types when they are exposed to undiluted Clorox or any type of bleach that contains sodium hypochlorite.
  • Undiluted Clorox will surely kill grasses and weeds, and undiluted bleach is also effective in killing grass. However, the chemical content is lower, so it could cause less damage and may not kill grass.
  • Clorox bleach kill weeds and grasses, whether it is undiluted or diluted.
  • If you want to kill weeds permanently, the effective grass killer Clorox bleach is recommended for use.

If unwanted grass starts growing on your lawn, you can try using Clorox now and see its effectiveness. 

5/5 - (5 votes)
Evergreen Seeds