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The Ornamental Plant Germplasm Center (OPGC) is part of the National Plant Germplasm System, a network of organizations and people dedicated to preserving the genetic diversity of crop plants.

The OPGC is a joint effort of the USDA-ARS and The Ohio State University's Department of Horticulture and Crop Science. Financial support is provided through the Floriculture and Nursery Research Initiative of the ARS.

Mission and Goals

Our mission is to conserve genetically-diverse herbaceous plant germplasm and associated information, conduct germplasm-related research, and encourage the use of germplasm and associated information for research, crop improvement and product development.   

Our goals are to acquire, document, maintain, characterize and distribute herbaceous ornamental genetic resources and associated information for conservation, and to enhance scientific research as well as the floriculture and nursery industry. 

News

  1. OPGC Strengthens Its Begonia Collection Through Collaboration with Fort Worth Botanic Garden

    Oct 5, 2026

    During their recent trip to Texas for the 2026 Annual Conference of the American Society for Horticultural Science, OPGC Director Yu Ma and members of her research program, M.S. student Freddy Mendez-Urbano, and Postdoctoral Researcher Jinjin Song visited the Fort Worth Botanic Garden.

  2. Freddy Mendez-Urbano’s Begonia Research Wins First Place at ASHS

    Sep 28, 2026

    Freddy Mendez-Urbano, an M.S. student advised by OPGC Director Yu Ma at The Ohio State University, was awarded first place in the Ornamental Plant Breeding Oral Competition at the 2026 Annual Conference of the American Society for Horticultural Science (ASHS), held August 3–7 in Dallas, Texas.

  3. OPGC Germplasm Research Presented at the 2026 ASHS Annual Conference

    Sep 21, 2026

    OPGC Director Yu Ma and members of her research program, M.S. student Freddy Mendez-Urbano and Postdoctoral Researcher Jinjin Song at The Ohio State University, participated in the 2026 Annual Conference of the American Society for Horticultural Science (ASHS), held August 3–7 in Dallas, Texas.

    Ma presented “Advancing Conservation and Utilization of Native Ornamental Plants” highlighting the importance of conserving and making effective use of native ornamental plant genetic resources.