Will Bleach Kill Pampas Grass?


When it comes to killing weeds, there are a lot of different ways that work. Some weed killers will kill the root, some kill the leaves, and others kill the seeds. But there’s also a chemical called bleach. Bleach kills by penetrating the plant’s cells and killing the bacteria within them.

You just need to mix up some bleach and water. Then, pour and left it on pampas grass for two hours. Make sure to reapply the bleach solution every other day for two weeks. After just one week, the pampas grass was all but gone.

Lawn Problem: Pampas Grass

It may not seem like it, but bleach is not an appropriate substance for cleaning your yard. Bleach is often touted as the best way to clean your yard to keep it healthy. Unfortunately, this is not the case. Many people think that just using bleach on their lawn, grass, or even their garden will be enough to kill weeds, but this is not the case. Pampas grass, also known as sheep grass, is one of the most common weeds that you can find in your yard.

Pampas grass (Cortaderia selloana) is an invasive plant that can take over your property if you let it, and it is even worse if you don’t. The problem with Pampas grass is that it grows very quickly and, like most invasive species, it has few natural predators. Pampas grass is especially hard to kill because it has an extensive root system that may spread over thousands of square feet. Pampas grass also has the ability to reproduce quickly, so if an area is infected with the plant, it may quickly become overrun.

It’s no secret that pampas grass is a weed that can take over your yard, so prevent it by using the proper tools to get rid of it. When dealing with weeds, it’s important to remember that harsh chemicals are often ineffective. Weeds are often hard to get rid of, so the best thing to do is use compounds that are designed to kill them without killing any of your plants. One of these compounds is bleach.

Bleach and Pampas Grass

One of the most often used cleaning agents in homes all around the world is bleach. In the house, bleach can be quite useful for sanitizing surfaces, cleaning dishes, and eradicating pests. It can even be used to clean clothes. However, there are other things that bleach can kill off. One of these is pampas grass. Pampas grass is a type of plant that has a very strong smell and can spread throughout your home once it has taken root. With proper use, even the stubborn pampas grass, bleach will be able to kill it off.

Bleaching is a method to kill weeds by using chemicals, but there are some risks involved. The fertilizer used during bleaching can also cause harm to pampas grass, so be sure to wear gloves when handling the plants.

What Are The Other Methods To Getting Rid Of Pampas Grass?

Pampas grass is an invasive plant (Cortaderia selloana or Cortaderia jubata) that has been found in many places around the world and can pose a safety hazard to native plants and animals. In the United States, the weed is most often found in the western and southern states.

It can be a serious problem for animals and animals that feed on them, as well as for people who live near or work in areas where the plant is found. There are several different methods to control the spread of pampas grass, some of which are more effective than others. Find more information about Invasive species at CABI.org

Weed Killer

Here’s a comparison table for substances commonly used to control or kill pampas grass:

SubstanceEffectivenessApplication MethodEnvironmental Impact
BleachPartially effectiveSpot treatmentHarmful to soil and surrounding vegetation, not recommended for widespread use
SaltPartially effectiveSoil applicationSoil sterilization, long-lasting impact on surrounding vegetation and soil quality
VinegarPartially effectiveFoliar sprayNon-selective, may harm other plants, limited effectiveness on established pampas grass
Herbicidal soapModerately effectiveFoliar sprayLow toxicity, minimal environmental impact
GlyphosateHighly effectiveFoliar sprayPotential impact on other plants and environment, follow local regulations and guidelines

It’s important to note that the effectiveness of these substances can vary based on factors such as concentration, application technique, and plant health. Always follow the manufacturer’s instructions and consider alternative methods of pampas grass control, such as physical removal or consulting local gardening authorities for guidance on the most appropriate methods in your area.

READ MORE: Will Vinegar Kill Pampas Grass

Things To Consider When Using A Bleach

If you have a garden that is overrun by pampas grass, this may be the answer for you, but you need to do it right, and it is easy to get it wrong. You will need to apply bleach to the roots at least 1-2 weeks before the grass is ready to be cut down. To do this, mix two tablespoons of bleach per 1 gallon of water. If you are unsure, mix enough to make a gallon.

You can get rid of pampas grass in many ways, but the most common option is using bleach. The grass thrives in moist and wet soils and can spread quickly if it is allowed to mature. If you do not remove the grass soon enough, it will soon be impossible to get rid of. Bleach is one of the most popular solutions, and it will kill the grass, but it may also harm the surrounding soil. Make sure to aim the bleach to pampas grass only and not on other plants.

Pros and Cons of Methods To Kill Pampas Grass

Herbicidal spray
Effective at killing pampas grassPotential harm to other plants and environment
Systemic action for better root penetrationMay require multiple applications
Easy applicationFollow local regulations and guidelines
Physical removal
Ensures complete removal of plant and rootsLabor-intensive process
Minimal impact on surrounding environmentPotential regrowth if roots not fully removed
Immediate resultsRequires physical strength and protective gear
Effective for suppressing growth and killing pampas grassSlower process compared to other methods
Environmentally friendlyRequires long-term commitment and monitoring
Can improve soil qualityMay not fully eliminate roots and regrowth
Chemical control
Effective when used properlyPotential harm to other plants and environment
Can be targeted to specific areasMay require multiple applications
Systemic action for better root penetrationFollow local regulations and guidelines
Natural herbicides
Safer for the environment and surrounding plantsMay require multiple applications
Biodegradable and low toxicitySlower process compared to synthetic herbicides
Can be effective when used in combination with other methodsMay require repeated application

It’s important to note that the effectiveness of these methods can vary based on factors such as plant health, application technique, and environmental conditions.

READ MORE: Will Roundup Kill Pampas Grass

Remoe weed by hend

How long does it take for bleach to kill grass?

Bleach is a highly potent chemical that can have adverse effects on plants, including grass. If bleach comes into contact with grass, it can cause discoloration, burning, and even kill the grass. The exact time it takes for bleach to kill grass can vary depending on factors such as the concentration of the bleach, the amount applied, weather conditions, and the type and health of the grass.

In general, the effects of bleach on grass can be noticeable within a few hours to a couple of days. The grass may turn yellow or brown and eventually die if the bleach exposure is severe. It’s important to note that using bleach to intentionally kill grass is not a recommended or environmentally friendly method. It can harm the surrounding soil and other plants, and it’s generally better to explore alternative methods of weed or grass control.

Pampas grass removal cost

The cost of pampas grass removal can vary depending on various factors such as the size and density of the pampas grass, the location, accessibility, and the method used for removal. Here are some cost considerations:

  1. Professional Services: Hiring a professional landscaping or removal service can ensure effective and efficient removal of pampas grass. The cost will depend on factors mentioned earlier, as well as the rates of the service provider. Prices can range from a few hundred to several thousand dollars, depending on the extent of the work.
  2. Equipment and Tools: If you plan to remove the pampas grass yourself, you might need to invest in tools and equipment such as pruners, shovels, gloves, protective clothing, and disposal bags. The cost will depend on the quality and quantity of the equipment purchased.
  3. Disposal: Proper disposal of the removed pampas grass is essential. Depending on local regulations, you may need to pay for disposal fees or hire a waste management service to collect and dispose of the plant material.
  4. Additional Costs: Additional costs may arise if there are any specific requirements for site preparation, such as removing obstacles or obstacles around the pampas grass.

It’s recommended to obtain quotes from local professionals or services to get a better understanding of the cost involved for your specific situation. Factors such as geographic location, local labor rates, and the complexity of the removal can all impact the overall cost.

FAQ Will Bleach Kill Pampas Grass?

What chemical will kill pampas grass?

One commonly used herbicide for controlling pampas grass is glyphosate. Glyphosate-based herbicides, such as Roundup, are systemic herbicides that are effective at killing many types of plants, including pampas grass. However, their use should be approached with caution, as glyphosate can also harm other desirable plants and may have environmental implications. Follow the instructions provided by the manufacturer and consider alternative methods before resorting to chemical control.

It’s worth mentioning that controlling pampas grass solely with chemicals may not be sufficient, as it has an extensive root system that can be difficult to eliminate entirely. Combining chemical control with manual methods like digging up the plant and removing as much of the root system as possible is often recommended for effective eradication.

Will rock salt kill pampas grass?

Yes. Rock salt, or sodium chloride, can be used as a desiccant to kill plants, including pampas grass. When rock salt is applied to the soil, it can dehydrate the plant and disrupt its ability to take up water, eventually leading to plant death


Bleach is not specifically designed for plant control, and its use can have unintended consequences, such as harming surrounding vegetation and negatively impacting the soil. Additionally, some jurisdictions may have regulations or restrictions on the use of bleach for this purpose.

If you are looking to manage or remove pampas grass, it is advisable to explore alternative methods. Physical removal, such as digging up the plant and removing as much of the root system as possible, is often effective. You can also consult with local agricultural or gardening authorities for guidance on the most appropriate and legally permitted methods of pampas grass control in your area.

See also…

Does Bleach Kill Weeds

Rachel Lean
Rachel Lean

Adventurer, loving nature and plants, particularly Pampas Grass. Happy to share with other people the knowledge that I accumulated on the journey of my life.