Adding Permanent art that will withstand harsh winters adds an element to the garden that stands on its own and/or complements the evergreens, grasses and other plants that have winter interest. A bench or sculpture can be a focal point or destination. Arbors, Pergolas, cement benches/sculptures and boulders add interest year round. In a primarily shrubs/perennials garden, elements that span the seasons, anchor the garden and add interest throughout the year.
Smaller elements can add color and interest to areas where plants are not blooming or where ephemerals leave a gap. Many need to be stored indoors in winter, but add three season interest to a garden.