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[FAQ] • [doc]
Herb 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
285
Yield[?] Unknown edit

ProfitEdit

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 -27 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)
1 258 251 7 1,968 1,919
2 543 529 8 2,253 2,197
3 828 807 9 2,538 2,475
4 1,113 1,085 10 2,823 2,753
5 1,398 1,363 11 3,108 3,031
6 1,683 1,641 12 3,393 3,309

Growth StageEdit

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

DisassemblyEdit

[FAQ] • [doc]

Drop sourcesEdit

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For an exhaustive list of all known sources for this item, see here.
Source Combat level Quantity Rarity
Farmer71Rare
Giant Sea Snake631Unknown
Giant ant soldier701Common
Giant rock crab951Uncommon
Gnoeals701Rare
Ice troll female681Common
Magical chestN/A3–10Varies
Master FarmerN/A1Uncommon
Mogre541Rare
Mountain troll751Common
Sea Snake Young631Uncommon
Skeleton fremennik23; 28; 301Uncommon
Thrower Troll771Rare
Troll spectator651Unknown
Undead troll77; 81; 86; 951Common
Wallasalki 79; 84; 911Common