Redwood sapling

Redwood Sapling is a members-only item on the OSRS Grand Exchange in the seeds category.

In-game examine text: "This sapling is ready to be replanted in a Redwood patch."

It has a Grand Exchange buy limit of 100 every four hours, a high alchemy value of 1 gp, and item ID 22859.

View on OSRS Wiki

Redwood Sapling shows an active flip setup with a margin of +591 gp and 4,116 trades over the last 24 hours.

At the buy limit of 100 every four hours, max profit per cycle is about 59.1k gp — high margin with healthy liquidity.