Landscape architects influence the demand for plant material when specifying plants for landscape projects. A survey of landscape architects in Georgia identified the value of plant material specified for nine plant-types: deciduous trees (> 3” caliper), deciduous trees ≤ 3” caliper), evergreen trees, coniferous shrubs, broadleaf shrubs, perennials/groundcovers, native herbaceous, bedding plants, and turf. As a plant category, trees represented the largest proportion of plant material, approximately 50% of the total value for all firms. With the exception of turf, landscape architects are expected to specify the same or greater value of plant material over the next five years, a positive economic sign for the nursery industry. The frequency of plant substitution due to lack of availability was greatest for the five plant-types generally produced as container nursery stock in Georgia; coniferous shrubs, broadleaf shrubs, perennials/ground covers, native herbaceous, and bedding plants. The two trends identified by landscape architects as most likely to affect the type of plants specified over the next five years are water availability and need for low maintenance landscapes.
Supported in part by the American Society of Landscape Architects, 4401 Connecticut Avenue NW, Washington, DC 20008; the Horticultural Research Institute, Inc., 1250 I Street NW, Suite 500, Washington, DC 20005; and the Tennessee Valley Authority, P.O. Box 1010, Muscle Shoals, AL 35660.
2Associated Professor and Extension Horticulturist.
3Professor, Department of Statistical and Computer Services, Coastal Plain Experiment Station, Tifton, GA 31793.