Thatch
 
        
        
      
           
        
        
      
    Understanding Thatch & Its Impact
π What is Thatch?
- Thatch is a layer of dead grass and decaying organic matter that accumulates at the soil level. 
β οΈ Why is Thatch a Problem?
- Excessive thatch traps moisture, creating a breeding ground for fungi, pests, and pathogens. It can also delay spring green-up by blocking new growth from emerging properly. 
β Why Your Lawn Has Excessive Thatch?
- Fertilizers stimulate growth, outpacing soil microorganisms' ability to break down and decompose. - Buildup - If zoysia is NOT detached occasionally, thatch can begin to accumulate. 
 
- Bad Mowing Habits β Mowing too high or infrequently is a significant contributing factor to thatch buildup. - Spring Low Mowing can help mitigate the buildup of thatch. Watch our video about the ideal Spring Lawn Care Routine. 
- Read our Blog Post about Proper Mowing Practices. 
 
- Soil Compaction inhibits the microorganisms from properly decomposing organic matter. 
π± Are Grass Clippings Causing Thatch?
- Yes & No... as long as proper mowing practices are maintained, grass clippings do not contribute to thatch. In fact, microorganisms break down clippings and return them as valuable nutrients to the soil. - However, if you are not following the advice laid out in our Blog Post about Proper Mowing Practices, your lawn can and will accumulate thatch. 
 
Solutions for Thatch Build-Up
1οΈβ£ Dethatching
- Light Thatch: Use a garden rake to gently remove thatch, minimizing stress for faster recovery. 
- Heavy Thatch: Requires a dethatching machine or vertical mower to pull thatch from the topsoil. 
- Timing: Perform dethatching after dormancy but before summer heat to prevent excessive stress on the grass. 
2οΈβ£ Spring Low Mow ("Scalping") π±βοΈ
- Lowers mowing height to remove dormant grass and encourage spring growth. 
- Bag clippings to prevent buildup. 
- β Best for: Bermuda & Zoysia - DO NOT scalp zoysia lower than 2.5 inches 
 
- β NOT recommended for: St. Augustine & Centipede 
3οΈβ£ Core Aeration π¨
- Improves air and moisture infiltration, boosting microorganism activity that naturally breaks down thatch. 
- Leave soil plugs on topβas they decompose, they return nutrients to the lawn. 
- Encourages stronger root growth and overall turf health. 
π‘ For long-term thatch management, regular aeration is highly recommended!
 
                        