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Clean Plant Center Northwest

Welcome to the Clean Plant Center Northwest

The Clean Plant Center Northwest (CPCNW) is a part of the National Clean Plant Network and is based at Washington State University (WSU) Irrigated Agriculture Research and Extension Center in Prosser, Washington.

With funding from the USDA and commodity groups, we work closely with fruit tree, grape, and hop industries to propagate, maintain and distribute virus-tested fruit trees, grapevines, and hop plants from our facilities at WSU. Our connection to the agriculture industry ensures we continue to provide plant material that is relevant and economically important to each commodity. Our philosophy of “start clean, stay clean” emphasizes the importance of planting with clean materials to ensure high-quality production from orchards, vineyards, and hop yards. We provide clean plant material to nurseries, growers, and research agencies. The clean ‘mother’ plants in our greenhouses, screen houses, and foundation vineyard are a cornerstone of the U.S. pome and stone fruit, grapevine, and hop industries and state certification programs.

  • Dear Stakeholders, The Clean Plant Center Northwest (CPCNW) will be closed for the winter holiday period from December 21st 2020, reopening on January 4th 2020....
  • The CPCNW will be closed on Veterans Day (November 11th 2020), please expect delays in responding to correspondence.  
  • Dear Stakeholders, To comply with the stay-at-home order implemented by Washington State, the Clean Plant Center Northwest is reducing operations to protect our staff and...