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 Ancient Zygomite 109 1 Unknown Spitting Wyvern 139 1 Uncommon Taloned Wyvern 147 1 Uncommon Long-tailed Wyvern 152 1 Uncommon Ancient Wyvern 210 1 Uncommon Cerberus 333 6 (noted) Uncommon Kalphite Queen 333 25 (noted) Rare
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