how to get rid of tall fescue grass

3 min read 04-02-2025

Tall fescue is a common cool-season grass known for its resilience. However, its aggressive growth can make it a nuisance in unwanted areas. This comprehensive guide will help you effectively eliminate tall fescue from your lawn or garden. Whether you're dealing with a small patch or a larger infestation, we'll cover various methods to successfully remove this tenacious grass.

Understanding Tall Fescue's Persistence

Before tackling removal, understanding tall fescue's characteristics is crucial. Its deep root system and ability to spread via rhizomes (underground stems) contribute to its persistence. Simply pulling it up often proves ineffective. Therefore, a multi-pronged approach is usually necessary for complete eradication.

Methods for Removing Tall Fescue

Several methods can be used alone or in combination to effectively remove tall fescue. The best approach depends on the size of the infestation and your resources.

1. Non-Chemical Methods: For Smaller Infestations or Eco-Friendly Approaches

Hand Pulling: For small patches, carefully dig up the fescue, ensuring you remove as much of the root system as possible. This method is time-consuming but environmentally friendly. Be prepared for persistence – some roots will likely remain.
Smothering: Covering the area with thick cardboard, plastic sheeting, or landscaping fabric prevents sunlight from reaching the grass, causing it to die. This method takes several months but is effective. Weigh down the covering material to prevent wind from lifting it.
Solarization: This method involves covering the area with clear plastic during the hottest part of the summer. The trapped heat kills the grass and weeds underneath. This requires sunlight and warm temperatures.

2. Chemical Methods: For Larger Infestations or Faster Results

Important Note: Always follow the manufacturer's instructions carefully when using herbicides. Wear appropriate protective gear, including gloves and eye protection.

Herbicides: Several herbicides are effective against tall fescue. Some are selective, meaning they target specific grasses, while others are non-selective, killing all vegetation. Non-selective herbicides like glyphosate (Roundup) are often used for complete removal. Selective herbicides may be a better choice if you want to preserve other plants.
Timing is Key: Applying herbicides in the spring or fall, when the grass is actively growing, yields the best results. Follow the product instructions precisely regarding application rates and timing.

3. Preventing Tall Fescue Regrowth

Once you've removed the tall fescue, preventing its return is crucial. This involves:

Thorough Removal of Roots: As mentioned, removing as much of the root system as possible is key to preventing regrowth. A garden tiller can be helpful for larger areas.
Replacing with Desired Plants: Planting desirable grasses or ground cover immediately after removal helps prevent tall fescue from re-establishing itself. Choose species that thrive in your climate and soil conditions.
Regular Maintenance: Regular mowing and weeding help keep tall fescue at bay. Promptly address any new seedlings you see.

Frequently Asked Questions (FAQs)

How long does it take to get rid of tall fescue?

The time required depends on the method used. Non-chemical methods can take several months, while herbicides typically show results within a few weeks.

What is the most effective way to kill tall fescue?

For larger infestations, a combination of non-selective herbicides and diligent removal of root systems usually provides the most effective results.

Can I plant new grass immediately after removing tall fescue?

It's generally advisable to wait a few weeks after herbicide application or completely removing the roots before planting new grass. This allows the soil to recover and minimizes the risk of harming the new plants.

Conclusion

Getting rid of tall fescue requires a proactive and often persistent approach. Choosing the right method, considering the size of the infestation, and diligently following the instructions will significantly improve your chances of success. Remember to prioritize safety when using herbicides and always consult local gardening resources for specific advice tailored to your region. With patience and the right techniques, you can reclaim your lawn or garden from this tenacious grass.