Choose the Right Compost for Topdressing Your Lawn
Topdressing your lawn with compost is a great way to improve its health and appearance. Compost adds organic matter to the soil, which helps to improve drainage, aeration, and water retention. It also provides nutrients for the grass plants and feeds the beneficial microbes in the soil.
Choosing Quality Compost for Topdressing
Not all compost is created equal. When choosing compost for topdressing, it’s important to consider the following factors:
- Finished stage: The compost should be fully decomposed and have a dark, crumbly texture.
- Unwanted ingredients: Avoid compost that contains dyes, building materials, weed seeds, or pesticide residues.
- Parent materials: The compost should be made from high-quality organic materials, such as plant matter, food scraps, and manure.
- Composting process: The compost should be produced using a proper composting system that destroys pathogens and pesticide residues.
The Seal of Testing Assurance (STA)
The Seal of Testing Assurance (STA) is a testing, labeling, and disclosure program that helps consumers identify high-quality compost. STA compost has been tested to meet specific standards for organic matter content, nutrient levels, and the absence of harmful contaminants.
Benefits of Topdressing with STA Compost
Using STA compost for topdressing your lawn offers several benefits, including:
- Improved soil structure and drainage
- Increased nutrient availability for grass plants
- Reduced thatch buildup
- Enhanced microbial activity in the soil
- Reduced risk of pesticide residues
How to Apply Compost to Your Lawn
To topdress your lawn with compost, follow these steps:
- Choose the right time of year: Topdress in spring or fall, depending on your climate and the type of grass you have.
- Spread the compost evenly: Apply a thin layer of compost, about one-quarter to one-half inch thick, over the entire lawn.
- Water the compost in: This will help the compost to settle into the soil and begin to decompose.
- Core aerate the lawn: This will help to break up compacted soil and allow the compost to penetrate deeper into the root zone.
Tips for Topdressing Your Lawn
- Use bulk compost whenever possible. Bagged compost is more expensive and provides less material.
- Consider the fertilizer value of compost when planning your fertilizer applications. Compost can partially offset fertilizer needs.
- Consult with your local extension service or soil test provider for specific recommendations on topdressing depth and timing.
Additional Resources
- Find a list of STA compost participants
- Use the USCC’s compost calculator to determine the amount of compost you need.
By following these tips, you can choose the right compost for topdressing your lawn and improve its health and appearance for years to come.
