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Guam seed
Farming level 9
Patch Herb
Payment N/A
Time 80 min (4x20 min)
Seeds per Unknown edit
Experience
Planting 11
Harvesting 22.5
Produce
Crop Unknown edit
Yield[?] Unknown edit

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.

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 −176 coins.

Herb yield Profit/loss Herb yield Profit/loss
1 533 6 4,078
2 1,242 7 4,787
3 1,951 8 5,496
4 2,660 9 6,205
5 3,369 10 6,914

Note: Supercompost yields a minimum of 5 herbs.

Stage Description Image
Healthy Guam plant
1 The seed has only just been planted. Click for a larger image
2 The herb is now ankle height. Click for a larger image
3 The herb is now knee height. Click for a larger image
4 The herb is now mid-thigh height. Click for a larger image
5 The herb is fully grown and ready to harvest. Click for a larger image

Dropping monsters

Levels 1 to 74

For an exhaustive list of all known sources for this item, see here.

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Levels 75 and above

For an exhaustive list of all known sources for this item, see here.
Source Combat level Quantity Rarity
Mountain troll69; 711Common
Mogre601Rare
Ice warrior571Unknown
Skeleton Fremennik40; 50; 601Unknown
Troll spectator711Unknown
Undead troll74; 100; 1251Unknown

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Source Combat level Quantity Rarity
Ice troll female821Common
Sea snake young901Uncommon
Gnoeals84; 931Rare
Giant Rock Crab1371Unknown
Giant Sea Snake1491Unknown
Undead troll74; 100; 1251Unknown
Wallasalki981Unknown
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