The use of perennials in the garden and landscape is an area of much confusion for the home gardener. A customer-interactive computer program for point-of-sale marketing of perennials in garden centers which assures horticultural and aesthetic success is a potential solution to this problem. Literature of herbaceous perennials and perennial garden design was surveyed and landscape design professionals were interviewed to develop a complete algorithm for designing perennial border gardens. The assembled data were incorporated into the algorithm in the form of plant selection and placement rules and plant attribute heirarchies. The planting plan algorithm was tested and the resulting test gardens were critiqued by landscape design professionals. The algorithm was successful in designing horticulturally correct and aesthetically pleasing perennial border gardens. This algorithm is ready to be coded into a computer program for use as a customer-interactive, point-of-sale marketing tool.
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