This article is about the cleaned herb. For the grimy herb, see Grimy kwuarm
Kwuarm is a medium level herb requiring 54 Herblore to clean. It can be grown from kwuarm seeds at a herb patch at level 56 Farming and is used in the making of weapon poison and the popular super strength potion.
Because of its use in super strength potions, which are highly regarded among players due to the ability to boost their maximum hit, kwuarm is considered even more valuable than the higher level cadantine which is only used in super defence potions. To create a potion, you need to add the cleaned herb to a vial of water to create a kwuarm potion (unf), and then add the secondary ingredient.
According to the book Gielinor's flora - herbs, the herb was originally native to Kourend, with the name being given to it by dwarves, meaning warm death. The name is due to the plant's poisonous sap which is said to cause a burning fever when ingested. Since its discovery, it has often been used as a main ingredient in poison for various pests.
For an exhaustive list of all known sources for this item, see here