"Cashing In"
A researcher at Clemson University published research that evaluated the contribution of landscaping on the price of single-family homes.  The sale prices of a sample of 288 homes were related to house characteristics, location and landscape quality.  A house that ranked an "excellent" landscape quality rating could expect a sales price 4 to 5 percentage points higher (depending on the size of the lot) than equivalent homes with "good" landscaping and 8 to 10 percentage points higher than homes with a fair to poor rating.
    Henry, Mark S. 1994.  The contribution of landscaping to the price of single family houses: A study of home sales in Greenville, SC.  J.Environ.Hort. 12 (2):65-70.  June 1994

"The Great Outdoors"
When Americans want to enhance their homes, they focus on the outdoors.  In a recent Gallup research project, homebuyers revealed they think landscaping adds 14.87 percent to a home's selling price.  In another survey, Money magazine reported that landscaping as a home-improvement project has a recovery value of 100 to 200 percent if it is well done and harmonizes with nearby foliage.  Real estate agents agree.  Ninety-five percent of the members of the Society of Real Estate Appraisers concur that landscaping adds to the dollar value of real estate, while 99 percent said that landscaping enhances property's "sales appeal," increasing the actual speed of the sale.
    Lawn & Landscape, August 2002

"The Land of Opportunity"
An article in the March 2003 issue of Smart Money contains the following statistics:

   Landscape Design/Build, April 2003