Rotten fungus
Rotten fungus is a members item. No shop sells Rotten fungus and no monster drops it, so an Ironman makes it: it needs no skill level, using Calcified fungus (Croesus). There are 2 other recipes below.
“Ugh! This is toxic, I could use it to poison regrowing fungus.”
MembersTradeable (not for Ironmen)
Updated . Sources from the RuneScape Wiki's drop, shop and recipe data (CC BY-NC-SA 3.0), checked 2026-10-09. Item sprite © Jagex.
Ironman verdict
Where the materials come from: Calcified fungus (Croesus) (from Dead Varrock guard (Croesus, Mining)). Rotten fungus is members-only. It is tradeable on normal accounts, but an Ironman cannot use the Grand Exchange or trade for it, so the sources on this page are the whole list.
At a glance
- Members
- Yes
- Tradeable
- Yes, but not for Ironmen
- Monster drops
- None
- Shops
- None
- Recipes
- 3
- Used in
- Nothing
Make it yourself
Getting the materials as an Ironman
- Calcified fungus (Croesus): from Dead Varrock guard (Croesus, Mining)
Related items
Browse more items starting with R, or search every item.