Release date 11 July 2005 (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 5 Tithe Farm points
(Farmer Gricoller)
Exchange price 499 coins (info)
Buy limit 600
Weight 3 kg
Super-good for the smallest or largest of plants.

Supercompost is a more potent version of compost and is used in conjunction with the Farming skill. Compost, super compost, and ultracompost reduce the chance of a player's crops becoming diseased whilst growing, as well as increasing the minimum number of crops that will be received by the player upon harvest, even if those crops are protected.

There are two methods to make supercompost. The first method is to place 15 suitable organic items (see below) into any of the compost bins that are located next to the allotment patches found around RuneScape. Once the suitable items have been added, and the lid of the compost bin closed, the contents will begin to rot, taking approximately 90 minutes until completion. During this time the player may not open the compost bin or add any more items. Once the super compost has finished rotting, the player may open the compost bin and extract all of the super compost by using a bucket on it. Each bucket of super compost collected by the player will grant that player 8.5 Farming experience. When used on a farming patch, each bucket will grant an additional 26 experience.The second method is to use a Compost Potion on regular Compost. Besides, a player can also use a Compost Potion on a filled compost bin containing regular compost to turn it into supercompost.

As a rule of thumb, supercompost should only be used on farming patches that produce a valuable harvest (such as high-level herbs) and/or provide significant experience for each item harvested (such as watermelons). Supercompost cannot increase the yield of trees, fruit trees, or bush patches. Therefore, it is not recommended to treat those patches with supercompost if you plan to pay a gardener to watch over them, since there is no benefit other than the extra 26 experience granted.

If the player has finished the quest Garden of Tranquillity or have enough points in Nightmare Zone, they can use a dose of compost potion to turn regular compost to supercompost either on bucket (1) or compost bin (15).

Supercompost can also be purchased with reward points from the Tithe Farm minigame, costing 5 points per bucket.

You can add 2 volcanic ash to a bucket of supercompost to obtain ultracompost or 25 volcanic ash to a full compost bin that contains supercompost.

Suitable itemsEdit

Item Cost to Fill
Pineapple Pineapple 4,095
Watermelon Watermelon 285
Coconut Coconut 3,615
Papaya fruit Papaya fruit 4,665
Mushroom Mushroom 2,220
Poison ivy berries Poison ivy berries 14,490
Jangerberries Jangerberries 4,260
White berries White berries 13,590
Toadflax Toadflax 39,180
Irit leaf Irit leaf 13,680
Avantoe Avantoe 32,445
Kwuarm Kwuarm 31,635
Snapdragon Snapdragon 122,160
Cadantine Cadantine 20,925
Lantadyme Lantadyme 24,795
Dwarf weed Dwarf weed 11,085
Torstol Torstol 154,920
Oak roots Oak roots 645
Willow roots Willow roots 480
Maple roots Maple roots 525
Yew roots Yew roots 5,430
Magic roots Magic roots 28,560
Calquat fruit Calquat fruit 1,410
White tree fruit White tree fruit Not sold