How Do You Lay Turf on Top of Grass?

Laying turf directly on top of existing grass is not recommended as it will likely result in the new turf failing to establish properly. Here's why, and what you should do instead:

Why You Shouldn't Lay Turf Directly on Grass

• Lack of Root Contact: The new turf needs direct contact with the soil to establish roots. Existing grass prevents this crucial contact.
• Decomposition Issues: The decaying grass underneath can create an uneven surface and may hinder root growth, potentially leading to fungal diseases.
• Nutrient Competition: The decaying grass will compete with the new turf for essential nutrients, further hindering its establishment.

Steps for Properly Laying Turf (Instead of on Top of Grass)

Here's a step-by-step guide on how to properly lay turf, ensuring its successful establishment:

1. Kill the Existing Grass: This is a crucial first step.

   • Herbicide: Use a non-selective herbicide (like glyphosate). Follow the manufacturer's instructions carefully. This will kill all vegetation in the treated area. Wait the recommended time (usually 1-2 weeks) for the herbicide to fully work before proceeding.
   • Manual Removal: Alternatively, remove the existing grass manually using a spade or turf cutter. This is more labor-intensive but avoids the use of chemicals.

2. Remove Debris: Clear away all dead grass, weeds, rocks, and other debris from the area. A clean surface is essential.

3. Improve the Soil: This is vital for healthy turf.

   • Soil Testing: A soil test can reveal nutrient deficiencies or pH imbalances. Amend the soil accordingly.
   • Tilling/Cultivating: Loosen the soil to a depth of at least 4-6 inches. This improves drainage and aeration.
   • Adding Compost/Topsoil: Incorporate compost or topsoil to improve soil fertility, structure, and drainage. Aim for a level and slightly compacted surface.

4. Level the Surface: Use a rake to create a smooth, even surface. Ensure there are no dips or bumps. A slight slope away from buildings is beneficial for drainage.

5. Lightly Water the Soil: Moisten the prepared soil surface before laying the turf. This helps the turf make initial contact with the soil.

6. Lay the Turf:

   • Start along a straight edge: Begin laying the turf along a fence, path, or other straight edge.
   • Stagger the Joints: Like laying bricks, stagger the joints between the turf rolls to create a stronger, more visually appealing surface.
   • Ensure Close Contact: Butt the edges of the turf pieces tightly together, avoiding any gaps or overlaps.
   • Cut and Shape: Use a sharp knife or turf cutter to trim the turf around obstacles or to fit into tight spaces.

7. Roll the Turf: Use a lawn roller to ensure good contact between the turf and the soil. This eliminates air pockets and promotes root growth.

8. Water Thoroughly: Water the newly laid turf deeply and frequently. Keep the soil consistently moist (but not waterlogged) for the first 2-3 weeks.

9. Avoid Heavy Traffic: Minimize foot traffic on the new turf for several weeks until the roots have established.

10. Fertilize: Apply a starter fertilizer specifically designed for new turf to provide essential nutrients.

By following these steps, you'll ensure the successful establishment of your new turf and create a healthy, beautiful lawn. Laying turf properly requires preparation and patience but yields significantly better results than simply laying it on top of existing grass.