Structural soil is a construction technology developed by landscape architects. The system is designed to improve conditions for urban tree planting. It is a fairly simple method using a specially designed mix of aggregate and planting medium. The aggregates form a structural matrix to support the pavement around trees, and the planting medium provides space and nutrients to the tree roots. Verdaus first used this technology on the Majlis Oman project. The follow photo gallery shows the sequence of construction.