Barley seed

Barley Seed is a members-only item on the OSRS Grand Exchange in the seeds category.

In-game examine text: "A barley seed - plant in a hops patch."

It has a Grand Exchange buy limit of 2,000 every four hours, a high alchemy value of 1 gp, and item ID 5305.

View on OSRS Wiki

Barley Seed shows an active flip setup with a margin of +3 gp and 521,346 trades over the last 24 hours.

At the buy limit of 2,000 every four hours, max profit per cycle is about 6.0k gp — high margin with healthy liquidity.