Garden edging can exist around several items in a garden, including paths, ponds and beds. Basically, an edge serves as a barrier between a garden element and the lawn. Edges protect ponds, for instance, from being choked by grass, weeds and other pernicious lawn elements. Edges also help define areas such as flower beds and paths, so they occupy their own aesthetic space, rather than blending in with the lawn.
A continuous edge surrounds an entire area or side of an area without stopping. For instance, in a circular garden bed, a continuous edge stretches around the entire perimeter of the bed without any interruption, as a single piece of edging material. In a square bed, continuous edging may consist of four pieces of unbroken edging placed on one each side of the bed. Continuous edging provides optimal protection against weeds because weeds can't spread through any open breaks. One or two materials commonly comprise continuous edging: wood or concrete.
Concrete makes an ideal material for continuous edging because you can easily manipulate it in its clay-like form. A continuous concrete edge works something like a curb, forming a barrier around a garden element. You can use concrete to create continuous edging around any shape or size garden bed, pond or path by creating a mold around a garden element and pouring wet concrete into the mold. As it dries, concrete becomes hard and forms a lasting, weather-resistant continuous edge.
Edging can add aesthetic value to a garden and provide a practical purpose. For instance, you can texture and color concrete in numerous ways to match or accentuate the design and colors of your garden. If you doubt your ability to work with concrete, you can hire garden employees to install continuous concrete edging for you. Garden stores offer a variety of services designed to add aesthetic value to edging.