"A small grey cactus in a pot, except that it was covered with what looked like boils rather than spines."

The Mimbulus mimbletonia is a very rare magical plant, surmised to be originate in Assyria.[1]


Neville Longbottom holding his cactus plant

Neville Longbottom holding a Mimbulus mimbletonia in 1995

It is most notable for its pulsating and squirming nature and its unique defence mechanism. When prodded, Stinksap is squirted out from the boils on the surface of the plant. Stinksap is a non-poisonous liquid and is described as dark green and smelling like "rancid manure". After receiving one of them as a gift during the summer of 1995, Neville Longbottom demonstrated its defence mechanism for Harry Potter on the Hogwarts Express, accidentally covering the compartment and the people in it with Stinksap.[1] By the end of the school year in 1996, he discovered that further on in the plant's development, it makes "odd crooning noises when touched."[2]


Mimbulus mimbletonia was used as the password for the Gryffindor's common room at the start of the 1995–1996 school year, which Neville was overjoyed by, as he could finally remember the password.[3]

The plant was also mentioned by Hermione Granger in 1997, when retorting to Ron Weasley that she doubts that he "would find a woman who sulked for half an hour because Madam Rosmerta didn't laugh at their joke about the hag, the healer and the Mimbulus mimbletonia" after his comment about women being easily upset.[4]

During the Calamity which affected the Wizarding World in the 2010s, Mimbulus mimbletonia plants appeared as Confoundables, guarding branches of Bowtruckles. They could be repelled by volunteer members of the Statute of Secrecy Task Force by casting the Ebublio Jinx on them. A curse Confoundable also transfigured Pomona Sprout into a Mimblulus mimbletonia plant, requiring the volunteers to cast the General Counter-Spell to end the spell's effect on the professor.[5]


Notes and references

Miranda Goshawk · Quiac Marinus · Beaumont Marjoribanks · Nepali wizard · Gethsemane Prickle · Selina Sapworthy · Phyllida Spore · Tilden Toots · Hadrian Whittle · Sir Winogrand
Herbology at Hogwarts
Herbology Award · Herbology Lesson Cup · Herbology Race Cup · Herbology Store
Greenhouses One · Two · Three · Four · Five · Six · Seven · Professor's Office
Professors Herbert Beery · Pomona Sprout · Neville Longbottom · Unnamed Professor (19th century)
Textbooks Encyclopedia of Toadstools · Flesh-Eating Trees of the World · Goshawk's Guide to Herbology · Magical Water Plants of the Mediterranean · One Thousand Magical Herbs and Fungi · Winogrand's Wondrous Water Plants
Plants studied at Hogwarts
Aconite · Asphodel · Belladonna · Bouncing Bulb · Bubotuber · Bubotuber pus · Chinese Chomping Cabbage · Devil's Snare · Dittany · Fanged Geranium · Fire Seed Bush · Flitterbloom · Flutterby bush · Fluxweed · Gillyweed · Ginger · Knotgrass · Leaping Toadstool · Mandrake · Mimbulus mimbletonia · Moly · Nettle · Puffapod · Raspberry · Screechsnap · Self-fertilising shrub · Shrivelfig · Snargaluff · Sneezewort · Spiky Bush · Spiky Prickly Plant · Stinksap · Toad-eating plant · Umbrella Flower · Valerian · Vampiric vegetation · Venomous Tentacula · Walking plant · Wax vegetables · Whomping Willow · Wiggentree · Wild rice · Wormwood
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