Enhance your landscape with inexpensive DIY retaining walls! Explore various materials and types of retaining walls, from gravity walls to cantilevered walls. Learn step-by-step instructions for construction, including excavation, foundation preparation, and material laying. Discover the importance of soil compaction and drainage for stability and longevity. Beautify your retaining wall with plants and mulch, while considering landscaping tips for erosion control and aesthetics. Safety precautions, maintenance, and cost factors are also discussed to ensure a successful project.