Supercompost

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

To make super compost, a player must 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 40-50 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 4.5 Farming experience. When used on a farming patch, each bucket will grant an additional 26 experience. Some suitable items are listed below, but if you're unsure, use the item on the farmer by the patch and he/she will tell you if it makes super or normal compost.

Suitable Items

 * All tree roots (obtained when a tree is dug up from a tree patch)
 * Pineapples (pick from Brimhaven or buy in Grand Tree)
 * Watermelons (grow on allotment and put directly in bin)
 * Coconuts (use the coconut shell (after milk from coconut is used to fill empty vial; great because they cannot be eaten accidentally)
 * Papayas (picked from Papaya trees)
 * Bittercap mushrooms (grow on mushroom patch in Canifis)
 * Poison ivy berries
 * Jangerberries (respawn on ogre island west of Yanille)
 * White berries (respawn Isafdar or Red Dragon Isle)
 * Avantoe
 * Kwuarm
 * Snapdragon
 * Cadantine
 * Lantadyme
 * Dwarf weed
 * Torstol
 * Toadflax
 * Calquat (a good one-click supercompostable item)

Quick Supercompost
A quick way to get materials for making supercompost is by using pineapples. Pineapples can be bought from Ahrein on the Catherby docks once a day for 2 coins each, a total of 40 pineapples a day or picked in the Brimhaven Jungle. Each plant in the Brimhaven Jungle yields 5 pineapples each. Don't forget to head on over to the Calquat patch to grab the fruit if you have one planted!