Goutweed is obtained in three ways:
- By sneaking past troll guards in the storeroom under Burntmeat's kitchen during (and after) the Eadgar's Ruse quest.
- By growing from gout tubers in a herb patch, which are obtained occasionally from the Tai Bwo Wannai Cleanup minigame. This is not recommended because gout tuber is worth 787,963 on the Grand Exchange.
- Rare reward from the Gnome Restaurant minigame.
- The probabilities in this section are an estimation based on the data of exchanging 500 goutweed. The average value of trading in one goutweed is 775 gp according to these estimates.