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Professor Sprout: "Bubotubers. They need squeezing. You will collect the pus"
Seamus Finnigan: "The what?"
Professor Sprout: "Pus, Finnigan, pus, and it's extremely valuable, so don't waste it. You will collect the pus, I say, in these bottles. Wear your dragon-hide gloves; it can do funny things to the skin when undiluted, bubotuber pus."
Pomona Sprout and Seamus Finnigan in 1994[src]

A bubotuber was a magical plant, the visible part of which resembled a large, thick, black slug.[1]


A Bubotuber plant

This portion of the plant also squirmed of its own volition. The surface of a bubotuber was covered in shiny protrusions, which when squeezed yielded a thick, yellowish-green pus that had an odour akin to that of petrol.[1]


It is unknown where Bubotubers originated from, but they could be found in the Forbidden Forest[2] and were kept at the Hogwarts greenhouses.[1]


Main article: Bubotuber pus
"An excellent remedy for the more stubborn forms of acne, bubotuber pus. Should stop students resorting to desperate measures to rid themselves of pimples."
Pomona Sprout[src]

Bubotuber pus

Forest Trolls ate bubotubers.

Bubotuber pus acted as a treatment for severe acne, but undiluted pus could affect unprotected skin in unintended ways.[1] Because of this, Dragon-hide gloves were strongly suggested when handling them. This suggests that bubotuber pus was a topical treatment, but that the actual salve consisted of the pus either diluted in a solution or mixed with other ingredients.

The pus was also used in the brewing of certain potions, such as the Healing Potion,[3] and Fake protective potions.[4]


During the 1987–1988 school year, Bubotubers in the Forbidden Forest were largely trampled by sleepwalking students. A Forest Troll went so far as to the Forest Lake to look for Bubotubers, which prevented the centaurs from drawing water from there safely. Upon learning of this emergency, Jacob's sibling, Charlie Weasley and Liz Tuttle first attempted to plant some Bubotubers with Professor Sprout in the Herbology Classroom, but decided to seek another way as it would take weeks for them to grow. They then planted some in the Forest Grove with the help of dragon dung fertiliser and the Herbivicus Charm so that they matured immediately, and gave them to the troll to stop it from picking a fight with a centaur.[5]

Harry using the Seize and pull charm to pull on a Bubotuber growing in the Forbidden Forest

In 1994, Bubotubers were discussed and handled in fourth-year Herbology classes, with particular attention given to the extraction of Bubotuber pus.[1] They were also described in One Thousand Magical Herbs and Fungi.[6] During the 1994–1995 school year, Hermione Granger was sent a letter full of bubotuber pus by an unknown person who evidently believed the slanderous Rita Skeeter article that claimed that Hermione was toying with the affections of both Harry Potter and Viktor Krum.[7]


  • The name "Bubotuber" seems to be a compound of the words "bubo", the swelling of the lymph nodes seemingly like a large blister that accompanies infections like the bubonic plague, tuberculosis, or syphilis, and "tuber", referring to the fleshy, thickened underground stem of a plant, usually containing stored starch, like a potato. Both seem to be in reference to the appearance of the plant.


The Harry Potter Wiki has 15 images related to Bubotuber.

Notes and references

  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 Harry Potter and the Goblet of Fire, Chapter 13 (Mad-Eye Moody)
  2. 2.0 2.1 Harry Potter and the Goblet of Fire (video game)
  3. Harry Potter: Wizards Unite
  4. Harry Potter and the Half-Blood Prince, Chapter 5 (An Excess of Phlegm)
  5. Harry Potter: Hogwarts Mystery, Year 4, "TORVUS AND THE TROUBLED FOREST" Achievement
  6. Harry Potter: Hogwarts Mystery, Year 4, Side Quest "Trouble with Tonks"
  7. Harry Potter and the Goblet of Fire, Chapter 28 (The Madness of Mr Crouch)
Blossom Degrasse · Miranda Goshawk · Quiac Marinus · Beaumont Marjoribanks · Nepali wizard · Gethsemane Prickle · Sanjay Shanker · 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 Flesh-Eating Trees of the World · Ingredient Encyclopedia · One Thousand Magical Herbs and Fungi · Winogrand's Wondrous Water Plants
Plants studied and grown at Hogwarts
Aconite · Asphodel · Belladonna · Bouncing Bulb · Bubotuber · Bubotuber pus · Chinese Chomping Cabbage · Cowbane · Devil's Snare · Dirigible plum · Dittany · Fanged Geranium · Fat cactus-like plant · Fire Seed Bush · Flitterbloom · Flutterby bush · Fluxweed · Gillyweed · Ginger · Honking daffodil · Ivy · Knotgrass · Lavender · Leaping Toadstool · Mandrake · Mimbulus mimbletonia · Mistletoe · Moly · Nettle · Puffapod · Raspberry · Rose · Sage · Screechsnap · Self-fertilising shrub · Shrivelfig · Snargaluff · Sneezewort · Sopophorous plant · Spiky Bush · Spiky Prickly Plant · Stinksap · Sugar Shrub · Toad-eating plant · Tormentil · Umbrella Flower · Valerian · Vampiric vegetation · Venomous Tentacula · Walking plant · Wax vegetables · Whomping Willow · Wiggentree · Wild rice · Wormwood
Spells taught in Herbology at Hogwarts
Fire-Making Spell (Incendio) · Herbivicus Charm (Herbivicus) · Incendio Duo Spell (Incendio Duo) · Lumos Solem Spell (Lumos Solem) · Severing Charm (Diffindo)