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Grimy guam detail.png

A grimy guam is a herb that has not yet been cleaned to make a clean guam. Grimy guams may be grown from a guam seed with a Farming level of 9. Cleaning a grimy guam requires an Herblore level of 1 and gives 2.5 Herblore experience.

Clean guams are used to make Attack potions at level 1, Ranging potion at level 3 and Super fishing explosives at level 31. They are also a secondary ingredient for a Macaw, at level 41 Summoning. Grimy guams may also be obtained from the Sorceress's Garden minigame.

Cleaning grimy guam yields a profit/loss of 29 coins per herb.

Drop sources

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For an exhaustive list of all known sources for this item, see here.
Source Combat level Quantity Rarity
Aberrant spectre72; 781–5Common
Adolescent White wolf81Common
Air elemental441Common
Al Kharid warrior181Common
Ancient ranger1031Common
Ankou60; 61; 631Common
Ankou (elite)721Common
Bandit (Wilderness)181Common
Bandit Brawler112; 1181Common
Bandit looter421Common
Basilisk70; 771Common
Black Heather1381Common
Black Knight30; 331Common
Blue dragon741Common
Brutish jadinko911Common
Cave bug8; 121Common
Cave crawler53; 74; 781–2Common
Cave crawler53; 74; 781Common
Cave horror (elite)861Common
Chaos druid321–2Common
Chaos druid warrior651–2Common
Cockroach drone41Common
Cockroach worker301Common
Dark warrior161Common
Desert Lizard35; 49; 631Common
Desert strykewyrm1031–4Common
Dried zombie671Common
Druid (historical)331Common
Drunken man51Common
Dung kalphiteN/A1Common
Dust devil851Common
Dust devil (elite)951Common
Earth warrior781Common
Earth warrior (elite)881Common
Elf warrior84; 891Common
Elite Khazard guard77; 841Common
Exiled kalphite marauder98; 1071Common
Exiled kalphite paragon841Common
Fire giant851Common
Flesh Crawler39; 401Common
Frost dragon1121Common
Fungal mage811Common
Gelatinous abomination41Common
General malpractitioner841Common
Giant ant soldier701Common
Giant ant worker491Common

Store locations

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Seller Location Cost Currency Base stock Members?


[FAQ] • [doc]


  • On 2 March 2013, Grimy guams were made available to free players with the release of Burthorpe and Taverley becoming free to play areas.