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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, Due to the heatwave in the Pacific Northwest, the CPCNW will be operating at reduced levels this week. The CPCNW apologizes for any...
  • Due to the heatwave in central Washington, the CPCNW will be reducing operations this week. Please expect service delays.
  • 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....