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.

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 Pineapple Pineapple 2,655 5,310
Watermelon.png: Inventory image of Watermelon Watermelon 285 570
Coconut.png: Inventory image of Coconut Coconut 34,980 69,960
Coconut shell.png: Inventory image of Coconut shell Coconut shell Not sold
Papaya fruit.png: Inventory image of Papaya fruit Papaya fruit 6,570 13,140
Mushroom.png: Inventory image of Mushroom Mushroom 2,100 4,200
Poison ivy berries.png: Inventory image of Poison ivy berries Poison ivy berries 1,260 2,520
Jangerberries.png: Inventory image of Jangerberries Jangerberries 4,740 9,480
White berries.png: Inventory image of White berries White berries 4,650 9,300
Toadflax.png: Inventory image of Toadflax Toadflax 31,995 63,990
Avantoe.png: Inventory image of Avantoe Avantoe 30,810 61,620
Kwuarm.png: Inventory image of Kwuarm Kwuarm 20,010 40,020
Snapdragon.png: Inventory image of Snapdragon Snapdragon 147,270 294,540
Cadantine.png: Inventory image of Cadantine Cadantine 26,265 52,530
Lantadyme.png: Inventory image of Lantadyme Lantadyme 24,210 48,420
Dwarf weed.png: Inventory image of Dwarf weed Dwarf weed 7,755 15,510
Torstol.png: Inventory image of Torstol Torstol 120,525 241,050
Oak roots.png: Inventory image of Oak roots Oak roots 2,070 4,140
Willow roots.png: Inventory image of Willow roots Willow roots 810 1,620
Maple roots.png: Inventory image of Maple roots Maple roots 810 1,620
Yew roots.png: Inventory image of Yew roots Yew roots 1,095 2,190
Magic roots.png: Inventory image of Magic roots Magic roots 14,730 29,460
Celastrus bark.png: Inventory image of Celastrus bark Celastrus bark 118,410 236,820
Calquat fruit.png: Inventory image of Calquat fruit Calquat fruit 1,020 2,040
White tree fruit.png: Inventory image of White tree fruit White tree fruit Not sold
White lily.png: Inventory image of White lily White lily 12,120 24,240

Drop sources[edit | edit source]

This list was created dynamically. For help, see the FAQ.
To force an update of this list, click here.
For an exhaustive list of all known sources for this item, see here (include RDT).
SourceLevelQuantityRarity
Ancient Wyvern210 Multicombat.png8–10 (noted)Uncommon
Ancient Zygomite109 Multicombat.png(noted)Common(~1/10)
Callisto470 Multicombat.png100 (noted)4.75/128
This content is present in Twisted League. Earth impling36 Hunter icon.png(noted)Uncommon
Earth impling jarN/A Casket.png(noted)Uncommon
Venenatis464 Multicombat.png100 (noted)4.75/128
Vet'ion454 Multicombat.png100 (noted)4.75/128
Zygomite74; 86 Multicombat.png1–3 (noted)Uncommon

Store 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
Price
sold at
Price
bought at
Members?
Farmer Gricoller's RewardsHosidius5N/AMember icon.png

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."