Contrasting colours of the grey limestone paving and the richly coloured hardwood screen are highlights in this garden.
Edging refers to the material used to define the edge between two areas of use in the garden. That may be the flower bed from the lawn, patio, gravel path etc. On a practical level, it is sometimes crucial to use it, e.g. to retain the gravel on a pathway from drifting onto a lawn, and/or it may have a function in the design e.g. to map out the lines/ shapes in the design, or lead the eye in a desired direction.
Materials used for edging can be concrete, natural stone, timber, or metal. Costs, longevity and looks will vary with each material