Replacing a lawn involves several steps, from removing the old grass to preparing the soil and planting new grass or alternatives. Here's a comprehensive guide:
1. Kill or Remove the Existing Lawn
The first step is eliminating the existing grass. You have a couple of options:
- Herbicide: Use a non-selective herbicide like glyphosate (Roundup). Follow the product instructions carefully. This method requires a few weeks for the grass to die completely.
- Smothering: Cover the lawn with a thick layer of cardboard or newspaper (weighted down) for several months. This blocks sunlight and kills the grass. This is an eco-friendly but time-consuming option.
- Sod Cutter: Rent a sod cutter to physically remove the old grass. This is the fastest method, but it requires physical effort and can be costly.
2. Improve the Soil
Healthy soil is crucial for a thriving lawn. After removing the old grass, test your soil's pH and nutrient levels. You can purchase a soil testing kit at most garden centers or send a sample to a local agricultural extension office. Amend the soil based on the test results. Common soil amendments include:
- Compost: Adds organic matter, improves drainage, and provides nutrients.
- Topsoil: If your existing soil is poor, add a layer of high-quality topsoil.
- Lime: Raises the soil pH (makes it less acidic).
- Sulfur: Lowers the soil pH (makes it more acidic).
Till the soil to a depth of 6-8 inches to incorporate the amendments. Rake the soil smooth and level.
3. Choose Your New Lawn
Decide what you want to replace your lawn with:
- Grass Seed: A cost-effective option. Choose a seed blend appropriate for your climate, sunlight conditions, and desired maintenance level. Cool-season grasses like fescue, rye, and bluegrass are best for northern climates, while warm-season grasses like Bermuda, zoysia, and St. Augustine are suitable for southern climates.
- Sod: Provides an instant lawn. Sod is more expensive than seed but establishes quickly.
- Grass Plugs: Small sections of sod that are planted a few inches apart. They are less expensive than sod and will eventually fill in.
- Groundcover: Consider groundcover plants like creeping thyme, clover, or sedum for a low-maintenance, eco-friendly alternative.
- Hardscape: Replace part or all of your lawn with patios, walkways, or garden beds.
4. Planting (Grass Seed, Sod, or Plugs)
The planting process depends on your choice:
Grass Seed:
- Spread the Seed: Use a seed spreader to distribute the seed evenly.
- Lightly Rake: Gently rake the seed into the top ΒΌ inch of soil.
- Roll: Use a lawn roller to press the seed into the soil.
- Water: Water gently and frequently to keep the soil moist but not soggy.
Sod:
- Prepare the Soil: Rake the soil smooth and level.
- Lay the Sod: Start at one edge and lay the sod pieces tightly together, staggering the seams.
- Roll: Roll the sod to ensure good contact with the soil.
- Water: Water thoroughly immediately after laying the sod and continue to water frequently for the first few weeks.
Grass Plugs:
- Spacing: Plant the plugs according to the instructions (usually 6-12 inches apart).
- Planting: Dig a small hole for each plug and place it so the top of the plug is level with the surrounding soil.
- Water: Water thoroughly after planting.
5. Lawn Care After Planting
Proper aftercare is crucial for a successful lawn replacement:
- Watering: Water regularly to keep the soil moist. Avoid overwatering, which can lead to fungal diseases.
- Fertilizing: Fertilize according to the instructions on the seed or sod packaging.
- Mowing: Once the grass reaches a mowable height, mow regularly. Set the mower blade high for the first few mowings.
- Weed Control: Control weeds manually or with herbicides as needed.
By following these steps, you can successfully replace your old lawn with a new, healthy lawn or a suitable alternative.
