The STANDARDIZED LANDSCAPE SPECIFICATIONS FOR THE COMMONWEALTH OF VIRGINIA were originally developed by the Virginia Nursery & Landscape Association (Virginia Nurserymen’s Association) the Virginia Society of Landscape Designers and the Virginia Chapter of the American Society of Landscape Architects and are referenced in the Code of Virginia.
This is the reference in the Code of Virginia “All trees to be planted shall meet the specifications of the American Association of Nurserymen (now AmericanHort). The planting of trees shall be done in accordance with either the standardized landscape specifications jointly adopted by the Virginia Nurserymen’s Association, the Virginia Society of Landscape Designers and the Virginia Chapter of the American Society of Landscape Architects, or the road and bridge specifications of the Virginia Department of Transportation.” http://law.lis.virginia.gov/vacode/title15.2/chapter9/section15.2-961/
These specifications are out-of-date, so the default is the Road and Bridge Specifications of the Virginia Department of Transportation, until these are updated.
For current reference, use: VDOT Roadside Development Specifications, which can be accessed at
Book 602 – Topsoil
Book 603 – Seeding
Book 604 – Sodding
Book 605 – Planting
Nursery Stock Standards for plant size and ball/container specifications are available at AmericanHort for free download.
(ANSI Z60.1-2014 Approved April 14, 2014)
(AmericanHort was formerly the American Association of Nurserymen and the American Nursery and Landscape Association)
Tree Canopy Spread & Coverage in Urban Landscapes
database can be accessed at https://www.vnla.org/Research/Tree-Canopy-Spread-Coverage-in-Urban-Landscapes
This was the results of several collaborative projects by the Virginia Nursery and Landscape Association, Dr. Bonnie Appleton, Virginia Tech Department of Horticulture and Dr. Eric Wiseman, Virginia Tech Urban Forestry