How Do You Get Rid of Crabgrass?

How to Get Rid of Crabgrass: Expert Tips for a Healthy Lawn

Crabgrass is one of the most stubborn weeds that can quickly take over your lawn. It grows fast and can crowd out your grass, leaving your lawn looking unkempt and unhealthy. The good news is, with the right care and treatment, you can effectively get rid of crabgrass and prevent it from returning. We’ll explain everything you need to know about how to get rid of crabgrass, including its growth cycle, how soil health affects it, and why professional services like Dr. Green Services are the best option for getting rid of crabgrass.

What Is Crabgrass and How Does It Spread?

Crabgrass is an annual weed, meaning it completes its life cycle in one year. It grows in clumps and has wider, coarser blades compared to the grass you want in your lawn. During the warmer months, crabgrass emerges from seeds that germinate when the soil temperature hits around 55°F. Once established, it can quickly spread, especially if you don’t take action early.

Fun fact: Crabgrass seeds can stay dormant in the soil for years, only germinating when the conditions are right. This is why it can be so persistent, even in lawns that have been treated in the past.

Crabgrass in a lawn, highlighting the need for effective crabgrass control to maintain a healthy lawn.

Soil Health and Crabgrass Growth

Soil health plays a crucial role in how susceptible your lawn is to crabgrass. Healthy, nutrient-rich soil encourages strong grass growth, which helps it outcompete weeds like crabgrass. Poor soil conditions—such as compacted soil, low nutrients, or improper pH levels—create the perfect environment for crabgrass to thrive.

How does soil health impact how to get rid of crabgrass?

  • Compaction: If your lawn’s soil is compacted, it limits the ability of grass roots to spread and grow. This creates space where crabgrass can establish itself.
  • Nutrient Imbalance: Crabgrass thrives in low-nutrient soil. If your lawn lacks essential nutrients like nitrogen, potassium, and phosphorus, it provides less competition for crabgrass.
  • pH Levels: Crabgrass prefers slightly acidic to neutral soil (pH 6.0-7.0). Lawns with improper pH levels may have weaker grass, making them more vulnerable to weed growth.

At Dr. Green Services, we assess soil health as part of our overall lawn care strategy. By improving soil conditions through targeted treatments, we help create a lawn that can outcompete pesky weeds like crabgrass.

Timing Matters: The Science Behind Pre-Emergent Herbicides

When it comes to how to get rid of crabgrass, timing is everything. Pre-emergent herbicides are most effective when applied just before crabgrass seeds start to germinate. But how do we know when that is? The secret lies in soil temperature.

Why does soil temperature matter?

Crabgrass seeds begin to germinate when the soil temperature reaches about 55°F. This usually happens in early spring, but it can vary depending on your region and the year. Pre-emergent herbicides work by forming a protective barrier on the soil surface, preventing crabgrass seeds from germinating. If applied too early or too late, they won’t be effective.

Dr. Green Services uses local expertise to determine the optimal timing for pre-emergent treatments. This ensures that your lawn is protected at the right moment—before crabgrass even has a chance to sprout.

How to Get Rid of Crabgrass in Your Seasonal Lawn Care Strategy

Crabgrass control should be part of a broader, seasonal lawn care strategy. Each season brings different challenges and opportunities for your lawn. Understanding how to get rid of crabgrass and how it fits into the bigger picture is key to keeping it at bay.

  • Spring: This is when crabgrass is most vulnerable. Applying pre-emergent herbicides at the right time helps prevent germination and sets the stage for a healthy lawn.
  • Summer: During the warmer months, crabgrass can flourish. Ensure your lawn is healthy by regularly mowing and watering it properly to help grass outcompete any remaining weeds.
  • Fall: As temperatures cool, this is a great time to perform lawn aeration and overseeding. Aeration improves soil health, and overseeding can fill in bare patches where crabgrass might have taken root.
  • Winter: Even in the colder months, lawn care continues. Fertilizing and addressing soil health during the winter months sets your lawn up for a strong start in the spring.

At Dr. Green Services, we customize your lawn care plan for each season, ensuring your lawn stays healthy year-round, and crabgrass never stands a chance.

Certified technician from Dr. Green Services treating crabgrass in a lawn with professional weed control.

Common Mistakes Made Trying to Get Rid of Crabgrass

Many homeowners try to tackle crabgrass on their own, but DIY treatments often lead to mistakes that can make the problem worse. Here are some common pitfalls to avoid:

  • Applying Herbicide at the Wrong Time: Timing is crucial for crabgrass control, and many DIYers apply pre-emergent herbicides too early or too late in the season, making them ineffective.
  • Using the Wrong Herbicide: Not all herbicides target crabgrass. Some may be more general and can harm your lawn. Using the wrong product can lead to ineffective treatment or lawn damage.
  • Overwatering: Overwatering can promote crabgrass growth by creating conditions that are too favorable for it. Be sure to follow proper watering practices for your type of grass and climate.
  • Improper Lawn Care Practices: Poor lawn care, such as mowing too short or neglecting fertilization, weakens your lawn, making it more susceptible to crabgrass.

Crabgrass in a lawn, highlighting the need for effective crabgrass control to maintain a healthy lawn.

Why Professional Services Are Key to Effective Crabgrass Control

While DIY solutions may seem cost-effective, they often fall short in effectiveness. Here’s why professional services like Dr. Green Services are the better choice when it comes to removing crabgrass:

  • Expert Knowledge: Our certified technicians have years of experience and know the exact timing, products, and techniques needed to get rid of crabgrass effectively.
  • Better Products: DIYers often don’t have access to the same high-quality herbicides and treatments that professionals do. At Dr. Green Services, we use the most effective, professional-grade products available.
  • Precision Application: We apply treatments with precision, ensuring that the right amount of product reaches the right areas of your lawn at the optimal time. This results in more effective crabgrass control and healthier grass.
  • Comprehensive Lawn Care: Our Very Best Lawn Care plan, includes crabgrass control, premium fertilization and free liquid aeration to keep your lawn healthy and crabgrass free.

Get Rid of Crabgrass Today

If you’re tired of dealing with crabgrass in your lawn, don’t wait until it takes over. Dr. Green Services is here to help you create a crabgrass-free, healthy lawn that you’ll be proud of. Contact us today for a free quote, and let us develop a customized plan for your lawn care needs. Whether you need pre-emergent treatments, soil health improvement, or expert advice, we’ve got you covered.

About the Author

All content published by Dr. Green Services is written and reviewed by licensed lawn care experts who bring over 40 years of professional experience to every recommendation. Our Editorial Team includes certified lawn technicians and regional specialists across Illinois, Indiana, and Texas, ensuring every article is science-based, locally relevant, and results-driven.

Our licensed experts review each post to confirm that recommendations match regional turf types, soil conditions, and seasonal timing. Learn more about our licensed team and experience.

This content is reviewed by Ryan Van Haastrecht, James Tatum, Kenneth Florman, and Marc Harris, who collectively lead Dr. Green Services’ licensed operations across three states:

Together, this team ensures every blog post reflects verified lawn care expertise, technical accuracy, and the hands-on experience that defines Dr. Green Services’ trusted reputation.

Dr. Green Services technician applying grub control in a lawn, with the service truck visible in the background.

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