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Dragon dung fertiliser is a solution used to help Venomous Tentaculas and (presumably) other plants grow. Its main ingredient is Dragon dung, the potion's namesake. In 1997, Horace Slughorn asked Harry Potter to brew some in order to collect the otherwise unvaluable leaves of a Venomous Tentacula. The fertiliser is also noted to be Professor Sprout's preferred type.

Appearances

Potions Club
Potions Club HBPG
Members
Harry Potter · Hufflepuff girl · Horace Slughorn (possibly)
Potions
Antidote to Common Poisons · Cure for Boils · Dragon dung fertiliser · Draught of Living Death · Draught of Peace · Elixir to Induce Euphoria · Girding Potion · Love Potion Antidote · Oculus Potion · Polyjuice Potion · Shrinking Solution · Stamina Game · Volubilis Potion · Weasleys' Wizard Wheezes Love Potion · Wiggenweld Potion · Wit-Sharpening Potion
Badges
Last Gasp Badge · Master Potioneer Badge · Messiest Mixer Badge · Potions Beginner's Luck Badge · Potions Club Member Badge · Potions Club Star Badge · Potions Club Veteran Badge · Potions Endurance Badge · Smoky Brewer Badge · Speedy Brewer Badge
Locations
Hogwarts greenhouses
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