Gardeners desiring a casual and rustic appearance for their landscaping areas often select natural materials for edging gardens. Natural fieldstones, with their varied and rough appearance, serve effectively as a natural garden border to add informal decor and dimension to a landscape. Prepare the border area properly before you install the edging. This will ensure the fieldstones sit level along the garden edge, creating an attractive and long-lasting garden border.
Measure the garden area with the tape measure. This determines the number of fieldstones you'll need.
Measure the height of the fieldstones and add two inches for a layer of sand. Subtract the amount of the height of the fieldstones you wish to see above the soil level from this number to find the depth necessary for the trench. For example, if your fieldstones are five inches high, add five and two to equal seven inches. If you wish to see three inches of the fieldstones above the ground, subtract this number from seven to get four inches for the trench depth.
Dig a trench around the garden area with the shovel, making the trench the width of the fieldstones and the depth you figured in Step 2. Use the level and the ruler as you dig the trench to ensure the trench is even and level around the entire perimeter.
Pour a two-inch layer of sand over the trench, spreading the sand evenly throughout the trench. Use the level after you add the sand to ensure it is level.
Place the fieldstones into the trench, fitting them closely together like a puzzle. Because the fieldstones vary in size and shape, some of them may fit together better than others. Experiment with different arrangements until you have a trench of fieldstones you like.
Pound gently onto the fieldstones with the rubber mallet.