The Clean Plant Center Northwest holds and maintains a foundation collection of virus-tested, G1-level Hop accessions at Washington State University’s Irrigated Agriculture Research and Extension Center in Prosser, WA. These accessions are maintained in insect-proof screen houses to prevent reinfection and are regularly tested to ensure cleanliness. Accessions held in the foundation collection are available for sale and distribution to growers and nurseries across the United States.
All available accessions have undergone a series of diagnostic assays to ensure that they are free of economically important viruses and virus-like organisms.
Please note that this list contains only accessions that have reached full release status and are presently available; accessions in progress, or accessions that have been removed, are not shown.
Ordering and Distribution
The CPCNW has a single-hop sale/distribution period that runs throughout much of the year. This is:
Green Cuttings (Shoots): Requests taken from March 1st through August 31st
Unrooted green cuttings are offered for sale and distribution throughout the summer and early fall, weather permitting. Shoots are approximately 12-18 inches long, with an average of 5 nodes per cutting. A CPCNW Sales Agreement must accompany all Request Forms, and Proprietary Material Distribution Agreement must accompany any requests for proprietary material.
Flat of 50 Plugs: Requests taken year-round
Orders for plugs can be placed at any time, however, please allow 6 – 8 weeks for order fulfillment. Minimum orders for plugs are one flat per selection/clone, with 50 plants per flat. CPCNW staff will maintain communication throughout the growing season to identify mutually agreeable shipping or order pick up windows, based on plant maturity. A CPCNW Sales Agreement must accompany all Request Forms, and Proprietary Material Distribution Agreement must accompany any requests for proprietary material.
Fee Schedule and Payment (All prices in USD)
Green Cuttings (Shoots): $50.00 per cutting, minimum order of two cuttings per variety.
Flat of 50 Plugs: $500.00 per flat, single variety per flat.
Additional Charges: For orders picked up at the CPCNW facility, there will be no shipping fees charged, although all other fees will apply. For all orders, the final invoice will include:
- 10% handling and packaging fee for domestic shipments
- Actual shipping cost (calculated at time of shipment)
- Phytosanitary certificate (if applicable) at $175 per order shipped in the US, and $200 per order shipped internationally
Payment: Once the shipment is prepared, an invoice will be sent to the customer. This may be paid either by credit card via our secure payment link or by sending a check for the invoiced amount made out to CPCNW/WSU to 24106 N Bunn Rd, Prosser, WA 99350. Orders will not be shipped until payment has been received.
The CPCNW regrets to inform our international customers that we cannot ship green hop cuttings internationally to any country other than Canada.