Keyworth’s Midseason

Keyworth’s Midseason was produced alongside Keyworth’s Early in the 1940’s for the same desired wilt resistance. A cross between Fuggle and a wild American female, Keyworth’s Midseason proved more popular than Keyworth’s Early and reached a cultivation close to 600 acres in 1954. It is the parent of Density and Defender.

Also Known As
Purpose Aroma
Alpha Acid Composition 7.5%
Beta Acid Composition 3.1%
Co-Humulone Composition 46%
Country UK
Cone Size
Cone Density
Seasonal Maturity
Yield Amount 1680-2460 kg/hectare (1500-2200 lbs/acre)
Growth Rate High to very high
Resistant to Moderately resistant to downy mildew
Susceptible to
Storability Retains 45% alpha acid after 6 months storage at 20ºC (68ºF)
East of Harvest
Total Oil Composition 0.89 mL/100g
Myrcene Oil Composition 56%
Humulene Oil Composition 13%
Caryophyllene Oil 10%
Farnesene Oil Trace Amounts
Substitutes  Fuggle
Style Guide


Great Fermentations

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