Hop: Dr. Rudi


Dr. Rudi was bred by HortResearch as a an open cross of Smoothcone. Released in 1976.

Originally named Super Alpha but renamed in 2012 in honor of the "father of New Zealand hops", Dr. Rudi Roborgh.

There isn't a direct substitute.

General Information

Aliases Dr Rudi, Super Alpha
Profile Lemongrass, pine sap, floral, pithy citrus, and dried fruit. Crisp and clean bitterness.
Country New Zealand
Substitutes Citra®, Green Bullet
Pairs with Hallertau, Saaz
Purpose Dual: Aroma and Bittering
Yield 1000 - 1800 lbs/acre
Storage Retains 60 - 70% alpha acid contents after 6 months of storage at 68°F.
Beer Styles Winter Ale, Doppelbock, Pilsner, Blonde, Lager, English Bitter, Pale Ale, India Pale Ale


Alpha Acid 10.0 - 12.0%
Beta Acid 7.0 - 8.5%
Cohumulone 33.0 - 39.0%


Total Oil 1.0 - 1.4 ml/100g
Myrcene 25.0 - 35.0%
Humulene 30.0 - 35.0%
Caryophyllene 8.0 - 12.0%
Farnesene < 1.0%

Additional Characteristics

Growth Rate Vigorous
Cones Long and compact
Maturity Mid season
Ease of Harvest Good

Fact Sheet(s)

Last Updated
  • 2020-12-01 10:41:11 (Added: 2020-12-01 10:41:11)

Hops Catalog

Did you know?
  • Dwarf variety hops grow shorter in height than traditional varieties but, importantly, produce the same yield. This combination makes harvest easier.
Recently added hops
  • Storage: is based on the percentage of alpha acids remaining after 6 months at 20*F.
  • Oil composition percetages are based on the total percentage of oil in the hop. Example: 10 - 20% means that for the specific oil it is 10 - 20% of the overall oil make up.
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