Our graduate program offers thesis-based Doctor of Philosophy (Ph.D.), Master of Science (M.S.) and Landscape Systems and Design Master of Science (M.S.) degrees. Reflecting the research interests of our faculty, graduate students in our program engage in projects that explore fundamental concepts of plant biology, applied aspects of horticulture, and landscape management. The research program in Purdue HLA is internationally recognized for its discoveries, extraordinary publication and extramural funding records, and the strong involvement of its excellent faculty in graduate student mentoring. Areas of concentration include plant molecular genetics and epigenetics, plant physiology and stress biology, plant genetics and breeding, plant cellular and developmental biology, sustainable production horticulture, bioenergy, contained environment growing, floriculture, weed science, turf management, horticultural marketing, landscape management, and horticultural social sciences.