Guam seed
A guam seed - plant in a herb patch.
Guam seed is a members-only item on the OSRS Grand Exchange. Recent trades put the high price at 23 GP (6m ago) and the low price at 20 GP (4m ago). Buying at the low price and selling at the high price would leave 3 GP per item after the 2% tax (15.00% of the buy price). You can buy up to 600 every four hours. High Alchemy would lose 185 GP per cast if you bought it at the low price and paid for the nature rune. 40,605 were traded in the last 24 hours.
| High | 23 GP () |
|---|---|
| Low | 20 GP () |
| Tax | 0 GP |
| Margin | 3 GP |
| ROI | 15.00% |
| Buy limit | 600 every 4 hours |
| High alchemy | 1 GP |
Buy price (insta-sell / low): 20 GP
Sell price (insta-buy / high): 23 GP
Margin after tax: 3 GP per unit. No Grand Exchange tax applies at this price.
Buy limit: 600 every 4 hours.
The full buy limit of 600 Guam seed costs 12,000 GP at the current buy price. Across that quantity, the after-tax margin is 1,800 GP.
- Grand Exchange buy limit: 600 every 4 hours
- Members-only item
- High alchemy value: 1 GP
- Low alchemy value: 1 GP
- Base value: 1 GP
Guam seed price history
- Over the past 7 days, the average high ranged from 5 GP to 23 GP across 91 hourly samples. From 2026-11-01 UTC to 2026-11-08 UTC, it moved from 23 GP to 23 GP (0 GP, 0.00%).
- Over the past 30 days, the average high ranged from 5 GP to 69 GP across 350 hourly samples. From 2026-10-09 UTC to 2026-11-08 UTC, it moved from 42 GP to 23 GP (-19 GP, -45.24%).
- Over the past 90 days, the average high ranged from 1 GP to 69 GP across 901 hourly samples. From 2026-08-10 UTC to 2026-11-08 UTC, it moved from 10 GP to 23 GP (+13 GP, +130.00%).
- Over the past 90 days, the highest average high was 69 GP on 2026-10-18 UTC, and the lowest was 1 GP on 2026-09-24 UTC.
As of 2026-11-08 UTC. See this week's market summary.
To cite this page: QuantScapers, "Guam seed price history", based on OSRS Wiki real-time price data through 2026-11-08 UTC. Calculations by QuantScapers.
What is the Grand Exchange buy limit for Guam seed?
You can buy up to 600 Guam seed every 4 hours on the Grand Exchange.
Is Guam seed a members-only item?
Guam seed is a members-only item and requires OSRS membership to trade.
What is Guam seed's current buy and sell price?
At the latest update, Guam seed's insta-sell (low) price is 20 GP and its insta-buy (high) price is 23 GP on the Grand Exchange.
How much Grand Exchange tax applies to Guam seed?
Guam seed trades below 50 GP at the current quote, so no Grand Exchange tax applies.
What does a full buy limit of Guam seed cost?
Buying the full limit of 600 Guam seed costs 12,000 GP at the current insta-sell price of 20 GP each.