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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.

Accession ID Variety/Cultivar Name
Updated 2/4/2021
19-H-D-061 Alpharoma
19-H-D-069 Bitter Gold
19-H-D-071 Bramling
19-H-D-074 Canadian Red
19-H-D-005 Cascade
19-H-D-068 Cashmere
19-H-D-054 Centennial
19-H-D-058 Columbia
19-H-D-011 Columbia
19-H-D-002 Comet
19-H-D-004 Crystal
19-H-D-049 Fuggle
19-H-D-006 Glacier
19-H-D-075 Hallertau m.f.
19-H-D-062 Horizon
19-H-D-050 L-8
19-H-D-052 Liberty
19-H-D-060 Magnum
19-H-D-012 Mt. Hood
19-H-D-055 Mt. Rainier
19-H-D-010 Newport
19-H-D-001 Nugget
19-H-D-070 Olympic
19-H-D-066 Perle
19-H-D-072 Pocket Talisman
19-H-D-059 Saaz 72
19-H-D-003 Sorachi Ace
19-H-D-057 Sterling
19-H-D-065 Styrian Golding
19-H-D-009 Tahoma
19-H-D-056 Teamaker
19-H-D-051 Tettnanger
19-H-D-063 Triple Perle
19-H-D-076 Triumph
19-H-D-047 UK Serebrianka
19-H-D-048 Vanguard
19-H-D-073 Wuerttemberger
19-H-D-067 Yakima Gold
19-H-D-064 Zatecki Cerveni
19-H-D-053 Zeus


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.

International Shipments

The CPCNW regrets to inform our international customers that we cannot ship green hop cuttings internationally to any country other than Canada.