Seaweed price in OSRS — live Grand Exchange data

About Seaweed

In game it is examined as “Slightly damp seaweed.” Seaweed is members-only, so a membership is needed to trade or use it. The base game value is 2 gp, which is what shops price from rather than what players pay.

Seaweed buy limit

The Grand Exchange lets one account buy 13,000 every 4 hours. That is a generous limit, so the market rather than the limit is usually what caps a position here. Filling it once costs about 52,000 gp at the 4 gp price recorded on 11 October 2026. The limit is per account and resets on a rolling 4-hour timer.

GE tax on Seaweed

The 2% sale tax is rounded down, and at 4 gp it rounds to nothing — sales under 50 gp are untaxed, so a flip here keeps its whole margin.

High alching Seaweed

High alchemy turns one Seaweed into 1 gp. That is less than the 142 gp nature rune the cast costs, so alching Seaweed always loses money.

How much Seaweed trades

Seaweed sees about 79.1K trades a day, which makes it steadily traded — an order priced at the spread normally fills the same hour. That is roughly 6 times the 13,000 buy limit.

Seaweed FAQ

How much is Seaweed in OSRS? Seaweed is 4 gp on the Grand Exchange as of 11 October 2026, with an insta-sell of 3 gp. The chart above is live.

What is the buy limit for Seaweed? 13,000 every 4 hours.

Can you high alch Seaweed for profit? No — the alch value is 1 gp and the nature rune alone costs 142 gp.

Do you need members for Seaweed? Yes, Seaweed is members-only.