Asgarnian hops are grown from Asgarnian seeds at level 8 Farming. Four hops are used to brew Asgarnian ale at level 24 cooking.
Asgarnian seeds may be bought or stolen from Olivia in Draynor, stolen from Master farmers, received as a monster drop, or purchased from other players. The hops themselves can only be acquired through farming or from other players.
Farmers can be paid one sack of onions to watch over the hops patch for the player.