Supercompost

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Supercompost detail.png

Supercompost is a superior version of compost that is used in the Farming skill to reduce the chance of a farming patch becoming diseased per growth stage by 6/7[1]. When used on a farming patch, each bucket grants 26 Farming experience.

In addition, it also increases the minimum yield and maximum number of harvests received from allotments, hops and herbs[2]. This also applies to giant seaweed patches underwater[3] and Celastrus bark from a fully grown Celastrus seed[4].

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 does not 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.

Players can add two volcanic ash to a bucket of supercompost, or add 25 volcanic ash to a compost bin that contains supercompost, to upgrade it to ultracompost.

Obtaining[edit | edit source]

To create supercompost, players must place 15 suitable produce (see list below) into any of the compost bins that are located next to the allotment patches found around Gielinor. Once the bin is full, the lid of the compost bin must be closed to allow the contents to rot. This process takes approximately 90 minutes until completion, after which the player may open the compost bin and extract all of the supercompost by clicking on the bin or using buckets on it. Each bucket of supercompost collected grants the player 8.5 Farming experience.

Players may also use a compost potion to create supercompost. One dose of compost potion will change an entire finished bin of compost into supercompost, or one bucket of compost that has already been collected.

Supercompost can be purchased with reward points from the Tithe Farm minigame, for 5 points each.

The Lunar spell Fertile Soil can be used on a patch to apply the effect of supercompost to it without using any supercompost.

Suitable items[edit | edit source]

Item Cost to Fill Big compost bin
Pineapple.png: Inventory image of PineapplePineapple 1,650 3,300
Watermelon.png: Inventory image of WatermelonWatermelon 240 480
Coconut.png: Inventory image of CoconutCoconut 21,810 43,620
Papaya fruit.png: Inventory image of Papaya fruitPapaya fruit 11,820 23,640
Mushroom.png: Inventory image of MushroomMushroom 4,290 8,580
Poison ivy berries.png: Inventory image of Poison ivy berriesPoison ivy berries 2,130 4,260
Jangerberries.png: Inventory image of JangerberriesJangerberries 5,370 10,740
White berries.png: Inventory image of White berriesWhite berries 5,520 11,040
Toadflax.png: Inventory image of ToadflaxToadflax 18,375 36,750
Avantoe.png: Inventory image of AvantoeAvantoe 22,575 45,150
Kwuarm.png: Inventory image of KwuarmKwuarm 16,815 33,630
Snapdragon.png: Inventory image of SnapdragonSnapdragon 123,585 247,170
Cadantine.png: Inventory image of CadantineCadantine 21,750 43,500
Lantadyme.png: Inventory image of LantadymeLantadyme 19,350 38,700
Dwarf weed.png: Inventory image of Dwarf weedDwarf weed 8,955 17,910
Torstol.png: Inventory image of TorstolTorstol 109,320 218,640
Oak roots.png: Inventory image of Oak rootsOak roots 405 810
Willow roots.png: Inventory image of Willow rootsWillow roots 390 780
Maple roots.png: Inventory image of Maple rootsMaple roots 480 960
Yew roots.png: Inventory image of Yew rootsYew roots 2,055 4,110
Magic roots.png: Inventory image of Magic rootsMagic roots 27,510 55,020
Celastrus bark.png: Inventory image of Celastrus barkCelastrus bark 124,260 248,520
Calquat fruit.png: Inventory image of Calquat fruitCalquat fruit 1,200 2,400
White tree fruit.png: Inventory image of White tree fruitWhite tree fruit Not sold
White lily.png: Inventory image of White lilyWhite lily 13,290 26,580

Dropping monsters[edit | edit source]

Monster Combat level Quantity Rarity
Ancient Zygomite 109 2 (noted) 2; Common (~1/10)
Zygomite 74; 86 1–3 (noted) 3; Uncommon
Earth impling N/A 2 (noted) 3; Uncommon
Ancient Wyvern 210 8 (noted) 3; Uncommon
Vet'ion 454 100 (noted) 3; Uncommon
Venenatis 464 100 (noted) 3; Uncommon
Callisto 470 100 (noted) 3; Uncommon

References[edit | edit source]

  1. Jagex. Mod Kieren's Twitter account. 8 September 2017. Mod Kieren: "So with the release of Ultracompost I figured I'd explain how compost affects crops dying. Sorry it is very word heavy! Fire any questions:)"
  2. Jagex. Mod Ash's Twitter account. 24 January 2019. Mod Ash: "[Flower/berry/cactus patches] don't depend on the compost state. Allotments, hops and herbs do."
  3. Jagex. Mod Ash's Twitter account. 72 July 2018. Mod Ash: "[Does compost increase giant seaweed yield?] Yeah."
  4. Jagex. Mod Ash's Twitter account. 24 January 2019. Mod Ash: "Yes, celastrus would be helped by composting."