The American Society of Landscape Architects defines landscape architecture as "the profession that encompasses the analysis, planning, design, management, and stewardship of the natural and built environment."  A good landscape architect will create a design that is functional, attractive, and in harmony with the natural environment.  

Landscape architects plan the layout of "hardscape" (roads, walkways, retaining walls, irrigation pipes, sculptures, and fountains) as well as "softscape" (soil, grass, plants, and trees).  They receive advanced training, and most states require licensure before an individual may use the title of landscape architect.  A landscape architect may work with architects, surveyors, and engineers to identify an optimal arrangement for site development. 

Landscape architects provide:

• Advice and assistance on the development of land, either for residential, commercial, institutional, or public use
• Planning and design for improvements to the area around residential or commercial buildings
• Land use plans for neighborhoods or cities
• Environmental impact statements and review of zoning, development, and planning documents for government agencies

Unlike landscape designers, landscape architects are licensed, with a bachelor's or master's degree in landscape architecture.  A landscape architect will produce detailed site plans, with reports, sketches, models, and cost estimates.  Most landscape architects use computer-aided design (CAD) to help in the preparation of designs.  Typically, a landscape architect also provides information on construction methods and will create a list of the materials needed to complete a project.   Landscape architects may supervise the installation of their designs, and so-called "design/build" firms will also manage the actual building of the site.

For more information, visit the Landscaping section of About.com.

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