Research Facilities

Ellen Corning Long and T. Dixon Long Center for Plant and Environmental Science

The research program is housed in a modern science center that contains 15,000 square feet of greenhouse and research facilities. The science center has modern container areas and polyhouses for all aspects of plant growth and propagation.

Laboratories include the Reinberger Laboratory, which contains shared facilities for plant chemical analysis, molecular biology and soil ecology research.

Holden has more than 3,000 acres of high quality natural areas. High quality sites include Stebbins Gulch, pictured, which is listed as a National Natural Landmark. Holden research staff maintains long-term research sites within Stebbins Gulch as well as Pierson Creek Valley.


The David G. Leach Research Station in Madison, Ohio

Holden has expertise in the breeding and evaluation of Rhododendron. Much of our plant breeding work takes place at the David G. Leach Research Station, a 30-acre facility in Madison, Ohio. The Leach Station was a gift to Holden from Dr. David Leach, a world authority on the genus Rhododendron.