Laying sandstone garden edging is one of the most effective ways to define the borders of your lawn, shield your mulch beds, and add a touch of rustic elegance to your outdoor space. Unlike flexible plastic or metal edging, natural stone offers durability and a connection to the earth that instantly elevates the aesthetic of any garden. This guide walks you through the entire process, from selecting the right stones to ensuring a lasting finish.
Why Choose Sandstone for Your Garden Edging
Sandstone is a popular choice for landscaping due to its inherent beauty and practicality. Its warm, earthy tones—ranging from soft beiges to deep rusts—complement a wide variety of plantings and architectural styles. Because it is a natural stone, it weathers gracefully over time, developing a charming patina that enhances the character of your garden. Moreover, sandstone is relatively easy to cut and shape compared to granite or basalt, making it a suitable option for DIY enthusiasts.
Planning Your Layout
Before you begin digging, you need a clear plan. Determine the path of your edging, whether it follows a straight line along a driveway or curves gently around a flower bed. Use a garden hose or spray paint to mark the intended route. This visual guide allows you to adjust the layout until it feels right, ensuring the sandstone edging complements your garden’s flow rather than fighting against it.
Consider the width of the stones and the depth you need to set them. Generally, you want the edging to protrude about 3 to 4 inches above the ground to create a visible barrier, while having enough depth buried below the soil to provide stability. Mark these dimensions clearly so you know exactly how much material to prepare.
Tools and Materials You Will Need
Gathering the right tools is essential for a smooth installation. You will need the sandstone slabs themselves, along with a sturdy shovel, a rubber mallet, and a level. A wheelbarrow or cart will help you move the heavier stones, while a tape measure and carpenter’s level ensure precision. For the base, prepare coarse sand or fine gravel, and have landscape edging spikes or pins on hand to hold the stones in place temporarily during construction.
| Tool | Purpose |
|---|---|
| Shovel | Digging the trench |
| Rubber Mallet | Setting stones without chipping |
| Level | Ensuring flat tops |
| Measuring Tape | Layout and spacing |
Preparing the Ground
A solid foundation is the secret to long-lasting edging. Begin by excavating a trench along your marked line. The trench should be roughly twice as wide as the stone and deep enough to accommodate the thickness of the slab plus a few inches of base material. Use the shovel to remove grass, soil, and any debris, creating a clean, stable bed.
Once the trench is dug, compact the soil at the bottom. This prevents the ground from shifting over time, which would cause the edging to settle or tilt. If your soil is particularly soft or prone to erosion, consider adding a layer of crushed stone to the bottom of the trench to improve drainage and stability.
Laying the Sandstone Stones
With the groundwork completed, you can place the stones. Set the first slab into the trench, aligning it with your guide line. Use the rubber mallet to gently tap the stone into place, ensuring it sits flush with your desired height. Periodically check the level side-to-side and front-to-back to confirm the stone is even and stable.
As you progress, fit the stones tightly together to minimize gaps. If necessary, you can carefully chisel small edges to achieve a better fit. For curves, you may need to dig out the inner edge of the stone slightly to allow for a smooth bend. Maintain consistent spacing to create a harmonious rhythm throughout the garden.
Backfilling and Final Touches
When the stones are positioned correctly, backfill the trench with the excavated soil. As you fill, lightly compact the material to eliminate voids and lock the edging firmly in place. Avoid packing the soil too tightly against the top of the stone, as this can cause cracking; however, ensure it is stable enough to resist movement caused by lawn mowers or foot traffic.
Finish the look by adding a layer of decorative mulch or low-growing ground cover right up to the edge of the sandstone. This softens the rigid line of the stone and integrates the edging seamlessly into the landscape. With minimal maintenance, your new sandstone edging will provide clean lines and enduring beauty for years to come.