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Guam seed

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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.

Grimy guams are the fourth cheapest herbs in RuneScape. Supercompost or Fertile Soil spell is strongly advised against, as although this is the best way of preventing your herbs from getting disease, and it is not possible to water the patch, or ask a farmer to tend the herbs, they both cost more than the maximum yield of herbs.

Guam seeds may be bought from the Vinesweeper minigame for 10 points each.

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

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 -12 coins.

Herb yield Profit/loss (Grimy) Profit/loss (Clean) Herb yield Profit/loss (Grimy) Profit/loss (Clean)
1 120 89 7 912 695
2 252 190 8 1,044 796
3 384 291 9 1,176 897
4 516 392 10 1,308 998
5 648 493 11 1,440 1,099
6 780 594 12 1,572 1,200

Note: Supercompost yields a minimum of 5 herbs.

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


[FAQ] • [doc]

Dropping monstersEdit

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.
Source Combat level Quantity Rarity
Giant Sea SnakeN/A1Unknown
Giant ant soldierN/A1Common
Giant rock crabN/A1Uncommon
Ice troll femaleN/A1Common
Magical chestN/A3–10Varies
Master FarmerN/A1Common
Mountain trollN/A1Common
Sea Snake YoungN/A1Uncommon
Skeleton fremennikN/A1Uncommon
Thrower TrollN/A1Rare
Troll spectatorN/A1Unknown
Undead trollN/A1Common

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