Compost potion

Compost potion is a quest reward after completing Garden of Tranquillity. It is used to make supercompost. Players may use a dose on compost to make it into supercompost, or use a dose on a full compost bin to obtain 15 supercomposts. This potion cannot be made with the Herblore skill. Compost potion is a quest reward after completing Garden of Tranquillity.