A grimy torstol is a herb that has not yet been cleaned to make a torstol. Grimy torstols may be grown from a torstol seed with a farming level of 85, granting 224.5 experience per herb during harvest. Cleaning a grimy torstol requires a Herblore level of 75 and gives 15 herblore experience. Clean torstols are used to make Super combat potions with a herblore level of 90 or Zamorak brews with a Herblore level of 78. Grimy torstol is one of the five herbs that cannot be obtained from the Sorceress's Garden.
One grimy torstol plus 8 other grimy herbs can be obtained from the Sinister chest in the Yanille Agility dungeon when unlocked with a Sinister key.
Dropping Monsters
Monster Combat level Quantity Rarity Skotizo 321 20 (noted) Common Cerberus 318 6 (noted) Uncommon HerbsNormal herbs Grimy Guam leaf • Marrentill • Tarromin • Harralander • Ranarr weed • Toadflax • Irit leaf • Avantoe • Kwuarm • Snapdragon • Cadantine • Lantadyme • Dwarf weed • Torstol
Clean Guam leaf • Marrentill • Tarromin • Harralander • Ranarr weed • Toadflax • Irit leaf • Avantoe • Kwuarm • Snapdragon • Cadantine • Lantadyme • Dwarf weed • Torstol
Special herbs Grimy herbs Ardrigal • Rogue's purse • Sito foil • Snake weed • Volencia moss
Clean herbs Ardrigal • Rogue's purse • Sito foil • Snake weed • Volencia moss
Other Bruma herb • Doogle leaves • Goutweed • Mysterious herb
Chambers of Xeric Grimy Golpar • Buchu leaf • Noxifer
Clean Golpar • Buchu leaf • Noxifer