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About Ranarr weed
"A useful herb."
Ranarr weed is widely regarded as the most valuable common herb in Old School RuneScape, prized almost exclusively for its role as the primary ingredient in prayer potions — a staple consumable across virtually every PvM encounter. Players can plant ranarr seeds at 32 Farming or clean the grimy version at 25 Herblore, both routes feeding into an enormous and remarkably stable market. Because prayer potions are consumed constantly by the entire game, ranarr weed maintains high demand and consistently strong prices on the Grand Exchange.
Item Details
Item ID257
MembersYes
Store Value25gp
High Alch15gp
Low Alch10gp
GE Limit11,000 / 4h
Creation Recipes
Used in production (2)
| Product | Skill | Lvl | XP | Qty |
|---|---|---|---|---|
| Harralander potion (unf) | Herblore | 30 | 0 | 1 |
| Ranarr potion (unf) | Herblore | 30 | 0 | 1 |
Market Strategy
Prayer potion processing- Buy Grimy ranarr weed and clean to Ranarr weed
- Combine with Vial of water to make Ranarr potion (unf)
- Add Snape grass to make Prayer potion(3)
- Decant 3-dose potions into 4-dose for higher value
Prayer potion(4) - Ranarr weed - Snape grass - Vial of water = profit margin- Cleaning grimy ranarr is the easiest entry point — small margin per herb but huge volume.
- Farming a herb run with ultracompost is one of the most profitable activities in OSRS, returning 6+ herbs per patch.
- Demand is permanent and price-stable because every PvM account consumes prayer potions.
- Watch grimy vs clean spread for cleaning arbitrage opportunities.

