Hop: Keyworth's Midseason


Keyworth's Midseason is an old English aroma hop that had all but disappeared but had high acreage early on due to Verticillium wilt resistance.

The hop was released in 1949 from East Mailing Research Station in Kent, Keyworth along with Keyworth's Early but has a much higher yield.

After almost disappearing, it has seen a revival with Charles Faram's with descriptors of citrus and blackcurrant aroma.

General Information

Alias OR55
Profile Citrus, Blackcurrant
Country United Kingdom
Substitutes Keyworth's Early
Purpose Aroma
Yield 1500 - 2200 lbs/acre
Resistant Downy Mildew (moderate), Verticillium Wilt (moderate)


Alpha Acid 7.5%
Beta Acid 3.1%
Cohumulone 46.0%


Total Oil 0.9 ml/100g
Myrcene 55.8%
Humulene 13.4%
Caryophyllene 10.0%
Farnesene < 1.0%

Additional Characteristics

Growth Rate Good
Maturity Early
Sex Female
Leaf Color Light green
Side Arm Length 18" - 30"
Last Updated
  • 2021-01-19 17:06:30 (Added: 2021-01-19 17:06:30)

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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