Retaining walls are a versatile landscaping tool that can be used in a variety of applications. Use a retaining wall, to create a raised outdoor patio area for entertaining, create a tiered planting bed for a variety of flowers, shrubs and trees, or add walls to a sloped area to create an entire new lawn area. Whether a wall is constructed out of natural stone, boulders, landscape timbers, or segmental block, retaining walls can match most any type of landscape.