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Eliminate Crabgrass Naturally: How to Kill It Without Chemicals (2023)

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Crabgrass is a pesky weed that can take over your lawn in no time, robbing it of its beauty and health. According to research, more than 50% of all American households have had crabgrass issues at some point or another.

If you’re looking for an effective way to keep this unwanted guest away from your garden without using harsh chemicals, then natural methods are the way to go! In this article, we will discuss everything you need to know about eliminating crabgrass naturally and safely.

From organic weed killers and mulch smothering techniques through pros & cons of chemical vs natural control methods, we hope our tips will help you turn back the clock on your lawn’s appearance while keeping it healthy for years down the road!

Key Takeaways

how to kill crab grass naturally

  • Natural methods such as manual weeding, mulch smothering, solarization, and using grass types that compete with weeds are effective for crabgrass control.
  • Natural crabgrass killers like vinegar, boiling water, citric acid, and lemon juice concentrate can be used to eliminate existing crabgrass.
  • Prevention is key, and soil preparation prior to seeding, planting taller plants at the back of flower beds, and regular maintenance like weeding and overseeding can reduce future problems.
  • Organic mulch, corn gluten meal, and natural weed killers like vinegar and lemon juice concentrate can help smother and inhibit weed growth, without harming the environment, family, or pets.

Natural Methods for Crabgrass Control

Natural Methods for Crabgrass Control
You want to get rid of crabgrass without using harsh chemicals? Good for you! There are plenty of natural methods available that can be effective and safe for your lawn.

Manual weeding, hand pulling, and smothering with mulch are all ways to remove existing weeds from the lawn. If the infestation is too large for manual removal, then solarization technique or corn gluten meal may be just what you need.

For best results, use a combination of these natural ingredients together as pre-emergent herbicides.

Don’t forget to choose grass types that will compete well against weed species to prevent future infestations naturally! Natural crabgrass killers like vinegar or boiling water work wonders but should always be used cautiously as they can impact other plants around them.

With proper research and careful application techniques, however, this could finally put an end to your pesky weed problem!

Organic Weed Killer for Crabgrass

Organic Weed Killer for Crabgrass
Organic weed killers can be an effective solution for controlling crabgrass. Studies have found that vinegar is especially successful at eliminating this pesky problem. Hand pulling the weeds is a great way to reduce their spread while ensuring they don’t return.

Corn gluten meal also works as a natural pre-emergent herbicide by preventing new seeds from germinating and taking root in your lawn.

Sunlight exposure helps weaken existing crabgrass, making it easier to pull out of your lawn without leaving behind roots or stems that could eventually become reseeded later on down the line. For tougher patches, citric acid mixed with apple cider vinegar can work wonders in killing off all traces of crabgrass.

Solarization involves using wood chips or tarps to block out sunlight for several weeks so that existing seedlings die before reaching maturity. However, this process takes time and must be done consistently over many months if you want significant results in killing off large amounts of crabgrass permanently from your yard.

Natural methods like these are preferable compared to chemical treatments since they are both safer for people’s health as well as more eco-friendly overall!

Using Boiling Water and Vinegar to Eliminate Crabgrass

Using Boiling Water and Vinegar to Eliminate Crabgrass
Boiling water and vinegar can be an effective way to get rid of pesky crabgrass without using harsh chemicals. The process is simple: boil a pot of water, then pour it over the affected areas. This will kill any existing crabgrass and prevent new growth from sprouting up for weeks after treatment.

Spraying a mixture of vinegar or lemon juice concentrate with mulch on top will smother out established weeds, making sure they don’t come back in future seasons. Hand pulling is also an option; however, this requires regular maintenance throughout the season as well as soil aeration and weed control techniques such as corn gluten meal or mulch smothering to ensure no regrowth occurs afterward.

Sunlight therapy can also be used by removing all other vegetation around the desired area so that only sunlight reaches it. This should weaken even stubborn species within days if done correctly! In short, there are several natural ways to eliminate crabgrass without damaging your lawn’s environment.

Smothering Crabgrass With Mulch

Smothering Crabgrass With Mulch
If you’re looking for a natural way to kill crabgrass, smothering it with mulch is an effective solution.

To use this method, spread a thick layer of organic mulch over the affected area – enough that it completely covers all existing plants and grass roots – then water thoroughly. Sun exposure should be avoided during this process as well since too much sun can make the mulching ineffective.

Adjusting your mowing height can also help prevent weed growth in general. Longer blades allow more sunlight to reach deeper into the lawn, which encourages stronger root growth while also reducing competition from other weeds or crabgrass trying to take over your yard!

Finally, adding lemon juice concentrate or corn gluten meal may further inhibit unwanted weed growth by controlling seed germination without risking damage to desirable plants and turf grasses.

Pros and Cons of Chemical Vs. Natural Crabgrass Control Methods

Pros and Cons of Chemical Vs. Natural Crabgrass Control Methods
When it comes to controlling crabgrass, you should weigh the pros and cons of both chemical and natural methods.

Natural weed killers, like corn gluten meal, can be effective for killing crabgrass without harming the environment or family health. Soil preparation prior to seeding is essential for success in preventing weeds from taking over a lawn, while proper watering regimens are also important.

Additionally, one great natural substance that’s often overlooked as a weed killer is vinegar. It’s perfect for getting rid of some of gardening’s most frustrating weeds with minimal effort involved! Despite popular belief, there isn’t just one best method when it comes to killing weeds naturally.

Each homeowner has their own preferences depending on what works best in their situation.

Regular maintenance, such as weeding regularly and overseeding every spring, will help reduce future problems associated with crabgrass growth.

Frequently Asked Questions (FAQs)

How often should I water my lawn to prevent crabgrass growth?

To prevent crabgrass growth, water your lawn deeply and less frequently. Mulch to retain moisture, and aerate when necessary for healthy soil.

What type of mulch should I use to smother crabgrass?

Choose an organic mulch, such as wood chips, straw, or pine needles, to smother crabgrass. It will help stop the weed’s spread without harming your lawn or the environment.

How long does it take for natural weed killers to work on crabgrass?

Natural weed killers take time to work on crabgrass, but with patience and regular maintenance, they can be effective. Organic herbicides are a safe way to reduce the amount of weeds in your lawn while preserving its beauty and health.

What is the best time of year to use chemical treatments on my lawn?

Chemical treatments should only be used as a last resort, preferably in late autumn when the growing season has ended. However, consider using natural methods to kill crabgrass first for a more environmentally-friendly approach.

Is there anything I can do to prevent crabgrass from coming back after it has been killed?

To prevent crabgrass from returning, overseed your lawn in the spring, water deeply but less often, mow high, and regularly weed. Additionally, use natural methods like mulch or corn gluten meal to smother weeds, and organic vinegar for spot treatments.


After weighing the pros and cons of chemical and natural methods of crabgrass control, it’s clear that taking the natural route is the better option. Natural weed killers, such as boiling water, vinegar, and mulch, are effective and safe for the environment, family, and pets.

Plus, they can help you create a beautiful and healthy lawn without the harshness of many chemical treatments. Investing in natural methods of controlling crabgrass may seem like a daunting task, but it will ultimately be worth it in the long run.

Avatar for Mutasim Sweileh

Mutasim Sweileh

Mutasim is a published author and software engineer and agriculture expert from the US. To date, he has helped thousands of people make their yards lush and thick.