Release date 7 September 2017 (Update)
Members only? Yes
Quest item? No
Tradeable? Yes
Equipable? No
Stackable? No
High Alch 51 coins
Low Alch 34 coins
Destroy Drop
Store price Not sold
Exchange price 1,194 coins (info)
Buy limit Unknown
Weight 3 kg
Ultra-good for the smallest or largest of plants.
Ultracompost detail

Ultracompost is a more potent version of supercompost and is used in conjunction with the Farming skill. Ultracompost reduces the chance of a players crops becoming diseased (1:10 ratio) whilst growing, as well as increasing the number of crops that will be received by the player upon harvest, even if those crops are protected. The minimum number of herbs increases from five to six (when compared to supercompost), and in general the yield will be higher, around 20% higher on average.

To make ultracompost, a player must use 2 volcanic ash on a bucket of supercompost. Alternatively, 25 volcanic ashes can be used directly on a full compost bin containing supercompost in order to upgrade it to ultracompost.


  • Ultracompost was also referred to as ubercompost during development.[1]


  1. Jagex. Mod Kieren's Twitter account. 8 September 2017. Mod Kieren: "[Ubercompost] was an alternative name at one point"

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