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Guam seed detail

Guam seeds can be planted in a herb patch in order to produce grimy guams. This requires a Farming level of 9.

A nearby gardener will not watch over your growing guam.

Guam seeds may be bought from the Vinesweeper minigame for 10 points each, by pickpocketing Farmers and Master Farmers, as a drop from various monsters, and from Managing Miscellania.

When planting a Guam seed, it is recommended to use any type of compost in order to maximise potential yield and to reduce the chances of the patch becoming diseased and dying.

Guam seed
Farming level 9
Patch Herb
Payment N/A
Time 80 minutes (4x20 minutes)
Seeds per 1 seed
Experience
Planting 11
Harvesting 12.5
Produce
Crop Grimy guam
353
Yield[?] Unknown edit

Profit

The following table shows the profit yield, assuming all the herbs and seeds are purchased/sold at the Grand Exchange, for the guide price. If the herb dies, you will lose -109 coins. Using Supercompost yields a minimum of 5 herbs and maximises profit.

Herb yield Profit/loss (Grimy) Profit/loss (Clean) Herb yield Profit/loss (Grimy) Profit/loss (Clean)
1 244 226 7 2,362 2,236
2 597 561 8 2,715 2,571
3 950 896 9 3,068 2,906
4 1,303 1,231 10 3,421 3,241
5 1,656 1,566 11 3,774 3,576
6 2,009 1,901 12 4,127 3,911

Growth Stage

Stage Description Image
Healthy Guam plant
1 The seed has only just been planted. GreenHerb1
2 The herb is now ankle height. GreenHerb2
3 The herb is now knee height. GreenHerb3
4 The herb is now mid-thigh height. GreenHerb4
5 The herb is fully grown and ready to harvest. GreenHerb5

Disassembly

[FAQ] • [doc]

Drop sources

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For an exhaustive list of all known sources for this item, see here.
Source Combat level Quantity Rarity
Giant ant soldier701Common
Ice troll female681Common
Mountain troll751Common
Undead troll77; 81; 86; 951Common
Wallasalki79; 84; 911Common
Farmer71Rare
Gnoeals701Rare
Mogre541Rare
Thrower Troll771Rare
Giant rock crab951Uncommon
Master FarmerN/A1Uncommon
Sea Snake Young631Uncommon
Skeleton fremennik23; 28; 301Uncommon
Giant Sea Snake631Unknown
Troll spectator651Unknown
Magical chestN/A3–10Varies
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