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 |
| 709 | |
| 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 −176 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 | 533 | 562 | 7 | 4,787 | 4,990 |
| 2 | 1,242 | 1,300 | 8 | 5,496 | 5,728 |
| 3 | 1,951 | 2,038 | 9 | 6,205 | 6,466 |
| 4 | 2,660 | 2,776 | 10 | 6,914 | 7,204 |
| 5 | 3,369 | 3,514 | 11 | 7,623 | 7,942 |
| 6 | 4,078 | 4,252 | 12 | 8,332 | 8,680 |
Growth Stage[]
| Stage | Description | Image |
|---|---|---|
| Healthy Guam plant | ||
| 1 | The seed has only just been planted. | 
|
| 2 | The herb is now ankle height. | 
|
| 3 | The herb is now knee height. | 
|
| 4 | The herb is now mid-thigh height. | 
|
| 5 | The herb is fully grown and ready to harvest. | 
|
Disassembly[]
| Disassembly XP | 0.2 |
|---|---|
| Item quantity required | 1 |
| Material count | 1 |
| Base junk chance | 90.1% |
| Possible materials | |
| Often | |
 Organic parts | 99% |
| Rarely | |
 Living components | 1% |
Drop sources[]
- This list was created dynamically. For help, see the FAQ.
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- For an exhaustive list of all known sources for this item, see here.
| Source | Combat level | Quantity | Rarity |
|---|---|---|---|
| Giant ant soldier | 70 | 1 | Common |
| Ice troll female | 68 | 1 | Common |
| Mountain troll | 75 | 1 | Common |
| Undead troll | 77; 81; 86; 95 | 1 | Common |
| Wallasalki | 79; 84; 91 | 1 | Common |
| Farmer | 7 | 1 | Rare |
| Gnoeals | 70 | 1 | Rare |
| Mogre | 54 | 1 | Rare |
| Thrower Troll | 77 | 1 | Rare |
| Giant rock crab | 95 | 1 | Uncommon |
| Master Farmer | N/A | 1 | Uncommon |
| Sea Snake Young | 63 | 1 | Uncommon |
| Skeleton fremennik | 23; 28; 30 | 1 | Uncommon |
| Giant Sea Snake | 63 | 1 | Unknown |
| Troll spectator | 65 | 1 | Unknown |
| Magical chest | N/A | 3–10 | Varies |
