The Brickman Group, Ltd. The brick is both set on and joints swept with sand to provide some drainage in the pathway as well as to not disturb the native garden soil. The edging does indeed help to keep the bricks in place, but more than that it provides an strong line that contrasts in color and texture to reinforce the radius pattern of the garden spaces. Thanks!

The Brickman Group, Ltd. The edging is made of reclaimed top (or cap) sections from concrete masonry unit walls. I don't care much for concrete block walls, but this application sure worked for me. The dimensions are 2"x12"x6", but have used other dimensions for similar applications.

ajsimons What exposure is this? My walkway looks almost the same... Its a southern exposure with large oaks shading from the east