As interest in gardening and beautifying lawns continues to increase, so do ways in which to accent them. Adding an arbor or archway to your yard creates an elegant entrance or walkway. Trellises are perfect for supporting plants against a wall, creating a screen effect, or highlighting the design of your arbor. Obelisks sit above potted plants or those in the ground, and bring added height and sculpture to areas. Each item can be made of vinyl, metal, or wood, and range from basic in design to intricate and vivid.