Defining a clean boundary between your lawn and garden beds is one of the simplest ways to elevate the curb appeal of your property. Proper lawn edging creates a sharp, manicured look that prevents grass from encroaching into flower beds and stops soil from washing onto your walkway. This guide provides a detailed walkthrough of how to put in lawn edging, covering everything with the right preparation to long-term maintenance.
Planning Your Edging Layout
Before driving a single stake, you need a clear plan for where the edge will live. Walk the perimeter of your garden or bed and use a garden hose or spray paint to mark a smooth, flowing line. Straight lines offer a formal aesthetic, while gentle curves create a more natural look that is easier to mow around. Consider the location of underground utilities and irrigation lines, especially if you are installing metal or rigid plastic edging, to avoid future conflicts.
Gathering the Necessary Tools and Materials
Having the right tools on hand makes the installation process significantly faster and cleaner. You will typically need a sturdy edging shovel, a heavy rubber mallet, a carpenter's level, and a pair of work gloves to protect your hands. For materials, you can choose between metal edging, plastic edging, and treated wood, depending on your budget and desired visual style. Ensure you have enough material to cover the total linear footage of your layout, plus an extra ten percent to account for cuts and waste.

Tool Checklist
- Edging shovel or half-moon cutter
- Rubber mallet or sledgehammer
- Measuring tape
- Work gloves and safety glasses
- String line and stakes (for guidance)
Preparing the Trench
Most successful installations begin with a clean trench that provides a stable seat for the edging material. Remove the sod and soil along your marked line to a depth of approximately four inches. The width of the trench should match the base of your edging product; for example, a four-inch wide metal strip requires a four-inch wide trench. A straight, vertical wall on the bottom of the trench prevents the edging from shifting or tilting over time due to soil pressure.
Installing the Edging Material
With the trench prepared, you can begin setting the edging into place. Position the first section at the back of the trench and use your rubber mallet to drive it firmly into the compacted soil below. Aim for a final position where the top edge is perfectly level with the surrounding lawn. If you are using rigid materials, apply the mallet evenly to avoid cracking or warping the plastic or metal. For wood edging, ensure the sections fit tightly together to prevent shifting during freeze-thaw cycles.
Material Comparison
| Material | Pros | Cons |
|---|---|---|
| Metal (Steel/Aluminum) | Extremely durable, sleek modern look | Potentially higher cost, can rust if not coated |
| Plastic | Affordable, flexible for curves | May become brittle over time, visible in sunlight |
| Wood | Natural aesthetic, easy to cut | Requires sealing, may rot or warp |
Backfilling and Securing
Once the edging is in place, use the excavated soil to anchor it tightly against the trench wall. Pack the soil firmly by hand as you backfill, ensuring there are no large air pockets that could cause the edge to lean or wobble. If you are using metal or plastic edging, you might add a layer of packed gravel behind it to improve drainage and provide extra resistance against soil pushing against it. For a finished look, trim any excess length with your edging shovel before backfilling completely.

Finishing and Long-Term Maintenance
The final step in how to put in lawn edging is to integrate the new border with your existing landscape. Mow the grass cleanly right up to the edge to create a sharp contrast that defines the bed. Over time, soil naturally settles, so check the edging annually and add or pack soil as needed to maintain the crisp line. With proper installation, your lawn edging will resist weed invasion and prevent grass from reclaiming the beds, ensuring your landscape looks intentional and well-cared for year after year.