- Hop Plant Propagation Guidance – The CPCNW is pleased to provide detailed instructions on how to propagate hop plants starting with unrooted green cuttings (pdf). If you have additional questions regarding hop plant propagation, please contact Piotr Kowalec, Production Manager.
- Hop Propagators in PNW – Should you need to locate hop plant propagators in the Pacific Northwest region (pdf), the CPCNW has compiled a plant directory (pdf). These propagators serve as sources for virus-tested hop plant material. Listing in the directory is for informational purposes only and does not represent an endorsement of services by Washington State University or the Clean Plant Center Northwest.