Jester was released by Charles Faram, a modern English hop breeder, and represents a genuine departure from the earthy, honeyed vocabulary that's defined English hop character for most of the last two centuries — rather than continuing the Golding-and-Fuggle tradition, Jester was bred specifically to deliver tropical fruit and citrus notes closer to what American and Southern Hemisphere hops offer, but grown on English soil.
At 5.5-9.5% alpha acid, Jester covers a genuinely wide range for an English variety, with tropical fruit and citrus notes that would be unremarkable among American proprietary hops but stand out sharply against its English peers, none of which historically carried anything close to this fruit-forward a profile. This makes Jester a useful option for English breweries wanting to compete in the hazy IPA space without sourcing hops from outside the country entirely.
Jester's alpha range is unusually wide for a hop still marketed under a traditional-sounding English name, so any bittering-adjacent use is worth checking against the IBU calculator rather than guessed. Amarillo and Cascade both serve as the closer American aromatic comparisons, sharing Jester's general citrus-forward territory despite the different growing tradition and terroir. Modern English-brewed hazy IPA and pale ale both use Jester specifically for that New World character grown domestically. Jester's own range is unusually wide for an English hop — wide enough that its low end undercuts Cascade's and its high end approaches Amarillo's, so checking the current lot matters more here than for most of its English peers.