You can create sturdy garden edging with vertical or horizontal laid bricks. Stand the bricks on their short sides to build a vertical sawtooth border that adds charm to any garden. You also could place the bricks horizontally, the same way bricks are laid in the foundation of your home. Brick garden edging has a feeling of permanence that other types of edging do not.
Vertical brick edging
Dig a 10 cm (4 inch) deep trench around your garden the width of your bricks. Remove any rocks or roots that are protruding from the sides or base of your trench. Compact the loose dirt at the base of the trench with a tamping board.
Place one brick in each corner of the trench. Stand the bricks vertically on their shortest edge. Rest the long edge of the brick against the corner edge of the trench at a 45-degree angle. Fill in beneath the bricks with soil. This will help to brace them in a vertical position for the edging in your garden.
Place a wooden stake at each corner of your garden, 30 cm (1 foot) from the outside edge of the trench. Run a mason's line between the stakes with the line touching the top of the bricks in the trench. The lines will help you keep the bricks at an even height in the garden edging.
Abut one brick next to the other in the trench, just like you placed the first brick. Tilt each of the bricks so that the top corner touches the mason's line. Tap the bricks with the rubber mallet if you need to adjust the height.
Fill in around the bricks in the trench with soil. Tamp the soil into place.
Horizontal brick edging
Prepare the ground around your garden to lay bricks horizontally by excavating an area as wide as your bricks and 2.5 cm (1 inch) deep.
Spread a thin layer of prepared mortar mix over the excavated ground. Lay a row of bricks horizontally along the mortar mix. Abut the ends of the bricks together.
Spread a thin layer of mortar mix on top of the horizontal bricks in the first row. Begin with a half brick on the end, and lay another row of horizontal bricks on top of the first. Your second row will end with a half brick.
Build up the horizontal laid garden edging as high as you like. Begin each alternate row with a half brick.