Landscape architecture is the design of outdoor public areas, landmarks, and structures to achieve environmental, social-behavioral, or aesthetic outcomes. It involves the systematic investigation of existing social, ecological, and soil conditions and processes in the landscape, and the design of interventions that will produce the desired outcome. The scope of the profession includes landscape design; site planning; stormwater management; environmental restoration; parks and recreation planning; visual resource management; green infrastructure planning and provision; and private estate and residence landscape master planning and design; all at varying scales of design, planning and management. A practitioner in the profession of landscape architecture is called a landscape architect.
The American Society of Landscape Architects (ASLA) is the national professional association representing landscape architects, with 15,428 members in 48 chapters, representing all 50 states, U.S. territories, and 42 countries around the world, plus 68 student chapters.
The group was founded on January 4, 1899, to "establish landscape architecture as a recognized profession in North America", "develop educational studies in landscape architecture", and "provide a voice of authority in the 'New Profession'".
A green roof, which covers 3,000 square feet (280 m2) on the top of the ASLA headquarters, is to be honoured by GRHC in the 'Institutional Intensive' category, which honours innovative green roof design in North America, including the countries of the United States, Canada, and Mexico.