How to Get Rid of Zoysia Grass: Effective Removal Strategies

Zoysia grass, while hardy and drought-resistant, can sometimes invade areas of your lawn where it’s not wanted or become difficult to manage. If you find yourself needing to remove Zoysia grass, it’s important to understand the various methods available and their effectiveness.

Manual removal can be quite labor-intensive but may be necessary for small patches or areas where chemicals are not an option due to environmental concerns or local regulations.

On the other hand, chemical remedies can offer a more straightforward approach, though they require careful application to avoid damaging other plants or the ecosystem. In both instances, maintaining a routine afterward to prevent regrowth will be crucial. For those seeking environmentally friendly options, there are natural methods to hinder Zoysia grass without resorting to harsh chemicals.

Let’s explore the various options, to find the perfect solution for your specific Zoysia problem.

Understanding Zoysia Grass

Zoysia grass is a warm-season turf known for its fine texture and deep green color. Originating in Asia, it has been a popular choice for lawns due to its resistance to drought and ability to thrive in various soil types. Here’s what you need to know about Zoysia grass:

• Growth Habits: Zoysia spreads through stolons and rhizomes, forming a dense, weed-resistant turf. It grows actively during the warm months and typically enters dormancy during colder weather, turning brown.
• Maintenance: Your Zoysia lawn requires less watering compared to other grasses, thanks to its drought tolerance. Fertilization needs are moderate, but proper mowing practices are critical to maintain lawn health and appearance.

When considering removal, keep in mind:

• Deep Roots: Zoysia has a deep root system, which makes it challenging to remove. It is resilient and can reappear if the removal process is incomplete.
• Effective Strategies: Physical removal can be effective, though labor-intensive. For less extensive invasions, edging can help keep Zoysia within its boundaries. Chemical treatments with non-selective herbicides are another option, though application must be done carefully to avoid affecting nearby desirable plants.

Understanding Zoysia grass’s characteristics will help you make informed decisions about managing or eradicating it from your lawn.

Preparing for Removal

Before tackling the removal of zoysia grass, it’s crucial to properly assess the affected area and ensure you have the right tools on hand. This preparation will lead to a more effective and efficient removal process.

Evaluate the Area

First, determine the extent of your zoysia grass problem. Examine the size of the area and the type of terrain involved. Consider the proximity to other desirable plants, as this will affect the removal approach. Knowing whether you’re dealing with a small patch or an extensive area will dictate your strategy.

Gather Necessary Tools

Next, assemble your tools for removal. You’ll need:

• A spade or sod cutter for physically removing zoysia grass.
• Garden gloves to protect your hands.
• A wheelbarrow for transporting sod.
• Optional: non-selective herbicide if you prefer a chemical method.

Each tool serves a specific purpose, from cutting through tough zoysia roots to safely disposing of the removed sod. For larger areas, renting a sod cutter may be more efficient. If using herbicides, ensure you follow all safety instructions to protect yourself and the environment.

Manual Removal Techniques

Effective removal of zoysia grass can require physical labor. There are two main manual methods to consider if you are looking to clear zoysia grass from your lawn.

Digging Out Zoysia Grass

Removing zoysia grass by digging involves physically extracting the grass and its root system from the ground. Here’s what you need to know to get started:

1. Prepare your tools: You will need a shovel or a sod cutter for larger areas.
2. Water the area: Moist soil makes the removal of sod and roots easier.
3. Cut into sections: Slice the turf into manageable strips or sections.
4. Leverage and lift: Use the shovel to pry under the sod and lift the sections away.
5. Removing the roots: Ensure to remove as much of the root system as possible to prevent regrowth.

It’s important to note, as the House Digest article suggests, that this method is particularly effective when repurposing the area, for example, converting part of your lawn into a garden.

Solarization Method

Solarization utilizes the sun’s heat to kill zoysia grass:

• Water the lawn: Thoroughly soak the area to a depth of about 12 inches.
• Cover with plastic: Use a clear, thin plastic tarp to trap the sun’s heat.
• Secure the tarp: Place rocks or soil around the edges to keep the plastic in place.
• Duration: Leave the tarp for several weeks during the hottest part of the summer.

This method, as explained in detail at Girard on Girard, uses the greenhouse effect to elevate temperatures underneath the tarp, effectively killing the grass. It’s best for areas where you can afford to wait a few weeks for results.

Chemical Removal Methods

Chemical treatments can be effective for the removal of zoysia grass. Remember to carefully read and follow all labels to ensure safe and proper use.

Selective Herbicides

Selective herbicides are designed to target specific types of grasses without harming others. When dealing with zoysia grass, fenoxaprop and quinclorac are commonly used options. These herbicides are effective because they focus on inhibiting growth in grassy weeds, like zoysia, while typically leaving the rest of your lawn intact.

Non-Selective Herbicides

For total vegetation removal, non-selective herbicides like glyphosate are a widespread choice. Applying this type of herbicide will kill all plants it comes into contact with, not just zoysia grass. This approach is especially useful if you’re looking to clear an area for new planting or renovation. Be cautious with application, as drift or runoff can harm desirable plants.

Natural and Organic Alternatives

For those seeking eco-friendly ways to remove zoysia grass, consider natural and organic options that are both effective and environmentally sensitive.

Using Vinegar Solution

To create a natural herbicide, mix white vinegar with a small amount of dish soap and water. The vinegar’s acetic acid can be potent in burning the foliage of zoysia grass, while the soap helps the solution adhere to the leaves. Apply this on a sunny day for the best results.

Introducing Competitive Plants

Introducing other plants that compete for resources can naturally suppress zoysia grass. Consider planting tall fescue or ryegrass in cooler climates as these species can outcompete zoysia, especially in areas where temperatures regularly fall below 50 degrees, which is less than ideal for zoysia growth.

Maintenance After Removal

After successfully removing Zoysia grass, maintaining the area extends beyond just keeping weeds at bay; it’s about fostering a soil environment conducive to new growth and deciding on suitable replanting options.

Soil Health Management

Upon removal of the Zoysia grass, it’s crucial to restore soil health to ensure any new plants can thrive. Begin by testing the soil to check for deficiencies. You might need to amend the soil with organic matter or adjust pH levels—Zoysia prefers a pH of 6 to 6.5. For a higher pH, sulfur can be applied to lower it, but be cautious to do this only when temperatures are below 75°F.

Replanting Options

Choosing what to plant after Zoysia removal depends on your goals and local climate. For lawns, consider grasses like Fescue or Bermuda that may be better suited to your environment. If diversifying the landscape, plan for a mix of grass, flowers, and shrubs which can offer ecological benefits such as attracting pollinators. Whatever you decide, make sure to select plants that are adaptable to your soil conditions and climate zone.

Prevention and Long-term Control

Effective management of zoysia grass involves strategies that prevent its establishment and spread. By adopting the right cultural practices and landscape design, you can maintain a healthy lawn that resists the intrusion of this aggressive grass.

Cultural Practices

To safeguard your lawn, ensure your turf is in optimal health. Regular mowing to the recommended height for your grass type increases turf density, making it less hospitable for zoysia grass. Deep, infrequent watering encourages deep root growth of your lawn grass, which is essential in outcompeting zoysia grass.

Landscape Design Considerations

Incorporate landscape edging to physically restrict the spread of zoysia. Embedding edging materials at least 6 inches deep into the soil can form an effective barrier. Additionally, choose the right type of grass for your climate; zoysia struggles in areas where temperatures frequently fall below 50 degrees, so opting for a cool-season grass can naturally limit its growth.