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] The minimum number of herbs per harvest increases to 5 (when compared with compost). 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.

Farming info[edit | edit source]

Creation[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.

Requirements
SkillLevelXP
Farming Farming18.5
Members
Member icon.png
Ticks60 (36s) [r 1]
ToolsNoneFacilitiesFarming patch icon.png Compost Bin
Materials
ItemQuantityCost
Watermelon.pngWatermelon15405
Bucket.pngBucket15120
Total Cost525
Supercompost.pngSupercompost154,965
Profit4,440
  1. Filling 1 bucket takes 4 ticks, 60 ticks for 15.

Requirements
SkillLevelXP
Farming Farming45 (b)8.5
60% Hosidius favour required to enter the Farming Guild
Members
Member icon.png
Ticks120 (72s) [r 1]
ToolsNoneFacilitiesFarming patch icon.png Big Compost Bin
Materials
ItemQuantityCost
Watermelon.pngWatermelon30810
Bucket.pngBucket30240
Total Cost1,050
Supercompost.pngSupercompost309,930
Profit8,880
  1. Filling 1 bucket takes 4 ticks, 120 ticks for 30.

Requirements
Members
Member icon.png
Ticks0 (0s)
Materials
ItemQuantityCost
Compost.pngCompost125
Compost potion(1).pngCompost potion(1)187
Total Cost112
Supercompost.pngSupercompost1331
Profit219[r 1]
  1. Due to Grand Exchange prices changing based on trade volume, this profit may not be fully accurate if the components are infrequently traded.

Requirements
SkillLevelXP
Farming Farming18.5
Members
Member icon.png
Ticks60 (36s) [r 1]
ToolsNoneFacilitiesFarming patch icon.png Compost Bin
Materials
ItemQuantityCost
Weeds.pngWeeds151,605
Compost potion(1).pngCompost potion(1)187
Bucket.pngBucket15120
Total Cost1,812
Supercompost.pngSupercompost154,965
Profit3,153
  1. Filling 1 bucket takes 4 ticks, 60 ticks for 15.

Requirements
SkillLevelXP
Farming Farming45 (b)8.5
60% Hosidius favour required to enter the Farming Guild
Members
Member icon.png
Ticks120 (72s) [r 1]
ToolsNoneFacilitiesFarming patch icon.png Big Compost Bin
Materials
ItemQuantityCost
Weeds.pngWeeds303,210
Compost potion(1).pngCompost potion(1)187
Bucket.pngBucket30240
Total Cost3,537
Supercompost.pngSupercompost309,930
Profit6,393
  1. Filling 1 bucket takes 4 ticks, 120 ticks for 30.

Suitable items[edit | edit source]

For information about the cost/profit on creating supercompost, see Calculator:Farming/Supercompost profit

Item Cost to Fill Big Compost Bin
Pineapple.png Pineapple 2,700 5,400
Tenti pineapple.png Tenti pineapple Not sold
Watermelon.png Watermelon 405 810
Coconut.png Coconut 11,580 23,160
Coconut shell.png Coconut shell Not sold
Papaya fruit.png Papaya fruit 7,230 14,460
Mushroom.png Mushroom 1,755 3,510
Poison ivy berries.png Poison ivy berries 1,665 3,330
Jangerberries.png Jangerberries 3,570 7,140
White berries.png White berries 2,970 5,940
Snape grass.png Snape grass 4,290 8,580
Toadflax.png Toadflax 31,335 62,670
Avantoe.png Avantoe 24,840 49,680
Kwuarm.png Kwuarm 15,195 30,390
Snapdragon.png Snapdragon 140,625 281,250
Cadantine.png Cadantine 20,430 40,860
Lantadyme.png Lantadyme 15,975 31,950
Dwarf weed.png Dwarf weed 6,060 12,120
Torstol.png Torstol 119,115 238,230
Oak roots.png Oak roots 720 1,440
Willow roots.png Willow roots 210 420
Maple roots.png Maple roots 2,100 4,200
Yew roots.png Yew roots 690 1,380
Magic roots.png Magic roots 23,940 47,880
Celastrus bark.png Celastrus bark 124,260 248,520
Calquat fruit.png Calquat fruit 1,665 3,330
White tree fruit.png White tree fruit Not sold
White lily.png White lily 6,420 12,840

Products[edit | edit source]

ItemMembersSkillsXPMaterials
Nature house icon.pngNature house
Member icon.png
  • Construction 92
  • Construction 3038
Otherworldly theme icon.pngOtherworldly theme
Member icon.png
  • Construction 75
  • Construction 316
Ultracompost.pngUltracompost
(Direct addition)
Member icon.png
  • None
  • None

Item sources[edit | edit source]

For an exhaustive list of all known sources for this item, see here (include RDT).
SourceLevelQuantityRarity
Ancient Wyvern210 Multicombat.png7–10 (noted)3/132
Ancient Zygomite109 Multicombat.png(noted)1/10
Callisto470 Multicombat.png100 (noted)4.75/128
Earth impling jar Hunter icon.png(noted)1/100
Venenatis464 Multicombat.png100 (noted)4.75/128
Vet'ion454 Multicombat.png100 (noted)4.75/128
Zygomite74; 86 Multicombat.png(noted)6/137
Zygomite74; 86 Multicombat.png1–3 (noted)6/140

Shop locations[edit | edit source]

This list was created dynamically. For help, see the FAQ.
To force an update of this list, click here.
SellerLocationNumber
in stock
Restock
time
Price
sold at
Price
bought at
Members?
Farmer Gricoller's RewardsHosidiusN/A5N/AMember icon.png

Gallery (historical)[edit | edit source]

Changes[edit | edit source]

Date Changes
10 September 2020
(update)

The Grand Exchange buy limit was changed from 600 to 2,000.

References[edit | edit source]

  1. Jagex. Mod Kieren's Twitter account. 8 September 2017. (Archived from the original on 28 May 2020.) 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. (Archived from the original on 28 May 2020.) 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. (Archived from the original on 28 May 2020.) Mod Ash: "[Does compost increase giant seaweed yield?] Yeah."
  4. Jagex. Mod Ash's Twitter account. 24 January 2019. (Archived from the original on 28 May 2020.) Mod Ash: "Yes, celastrus would be helped by composting."