The main component of the GreenBed is a unique material called Faswall, a woodchip/Portland cement composite material invented in Europe and used to build high-performance, sustainable buildings. GreenBed wallpanels are made from this same remarkable rot-free and non-toxic material. Other materials used for gardening beds such as wooden panels, plastic boards, cement blocks, railroad ties, and pressure-treated wood have either longevity and/or toxicity issues. In addition to the GreenBed panels the kits include aluminum brackets, and a cedar wood trim kit with a bio-based non-toxic penetrating oil finish.