Jangerberries

Jangerberries are used in Herblore to make Zamorak brews. They can also be used to make supercompost. Jangerberries are also used in the Watchtower quest and can be randomly selected as an item needed in the quest Fairytale I - Growing Pains. If you do get this item for the fairytale quest, it would be advisable to bring 4 or more (or simply bring Druid pouches), because the Ghasts in Mort Myre Swamp may turn it into rotten food. This makes it useless, and may result in you doing more running than necessary if it happens.