- Hermione: "Devil's Snare, Devil's Snare...what did Professor Sprout say? — it likes the dark and damp"
- Harry: "So light a fire!"
- Hermione: "Yes — of course — but there's no wood!"
- Ron: "HAVE YOU GONE MAD? ARE YOU A WITCH OR NOT?"
- Hermione: "Oh, right!"
- — Hermione, Harry, and Ron struggle with Devil's Snare[src]
Devil's Snare is a plant with the magical ability to constrict or strangle anything in its surrounding environment or something that happens to touch it. Struggling or resistance to Devil's Snare will cause the plant to exert a greater force of constriction.
Devil's Snare does not seem to be common, but certain herbologists have access to it. It is composed of a mass of soft, springy tendrils and vines that possess some sense of touch, and resembles the Flitterbloom. This plant uses its creepers and tendrils to ensnare anyone who touches it, binding their arms and legs and eventually choking them. The harder a person struggles against Devil's Snare, the faster and more tightly it binds them. If the victim is able to maintain their presence of mind and relaxes, the Snare will relax its grip on them. Devil's Snare prefers a dark, damp environment. It will stop its movement in the environment in front of bright light and will recoil away from the heat of fire, so a well-placed flame spell such as bluebell flames will drive it away from its victims.
- Hermione Granger: "Stop moving! I know what this is — it's Devil's Snare!"
- Ronald Weasley: "Oh, I'm so glad we know what it's called, that's a great help."
- Hermione Granger: "Shut up, I'm trying to remember how to kill it!"
- Harry Potter: "Well, hurry up, I can't breathe!"
- — Hermione Granger, Harry Potter, and Ronald Weasley struggle with Devil's Snare.[src]
In 1991, Professor Sprout placed a large Devil's Snare as the second defence of the Philosopher's Stone, just below the trapdoor guarded by Fluffy. In 1992, Harry Potter, Hermione Granger, and Ron Weasley were caught in the plant when they attempted to prevent the theft of the Philosopher's Stone.
In 1995, Broderick Bode, an Unspeakable working for the Ministry of Magic, was a comatose patient at St Mungo's Hospital for Magical Maladies and Injuries, after having been Impuriused into attempting to steal a prophecy from the Department of Mysteries. When Bode began to recover, a Death Eater sent a potted Devil's Snare to the hospital in the guise of a Christmas gift in order to silence him. Healer Miriam Strout apparently mistook the plant for a flitterbloom, and it asphyxiated Bode.
In 1998, during the Battle of Hogwarts, Professor Sprout used Devil's Snare against the attacking Death Eaters and giants. They were placed around the castle of Hogwarts by Pomona Sprout and Neville Longbottom.
Behind the scenes
- In the film version of Harry Potter and the Philosopher's Stone, Hermione and Harry were able to escape the Devil's Snare by simply remaining calm. When Ron began to panic, Hermione saved him by casting Lumos Solem.
- In the film version of Harry Potter and the Goblet of Fire the Hedge Maze attacked the Champions during the third task of the Triwizard Tournament. Some roots attacked Cedric, it may be related to Devil's Snare. Eventually, it kept strangling Cedric, then Harry freed him from it.
- In Harry Potter and the Deathly Hallows: Part 2, Devil's Snare can be seen inside the Room of Requirement growing out of a glass case at the bottom of a column and growing toward the ceiling.
- In LEGO Harry Potter: Years 1-4, the first year Herbology students have a lesson on Devil's Snare. The plant gets out of control and captures Ron, as well as stealing Pomona Sprout's wand, requiring Harry and Hermione to destroy the plant with Lumos Solem.
- In the PS2, Xbox and Gamecube versions of Harry Potter and the Philosopher's Stone, the Devil Snare actually looks like a giant Venomous Tentacula but coloured blue instead of green (and it is defeated the same way).
- This also applies to its portrayal in the GBA version, but it instead fires seeds from its mouth and can only shoot them diagonally (unless Harry is very close to them they they'll shoot up/down/left/right); unlike the Venomous Tentacula, it can be defeated by jinxing the nearby torch platters with Flipendo to make them tumble and burn the Devil's Snare.
- In the PS1 version, there is a circular chamber containing the Devil's Snare. Ron and Hermione run to a side and a part of the Devil's Snare forms a wall, blocking them from the rest of the circular chamber. There are several tree-like branches which are green that spring up when Harry gets to close and attempt to squash him. Harry must cast Flipendo on the correct stalk (indicated in light green) in order to kill that stalk and bring the central stalk up, in which Harry must use a fully charged jinx at it to defeat part of its life. After defeating it each time the Devil's Snare blocking Ron and Hermione shrinks back and allows them to proceed.
- Harry Potter and the Philosopher's Stone (First appearance)
- Harry Potter and the Philosopher's Stone (film)
- Harry Potter and the Philosopher's Stone (video game)
- Harry Potter and the Goblet of Fire (film)
- Harry Potter and the Order of the Phoenix
- Harry Potter and the Order of the Phoenix (video game)
- Harry Potter and the Half-Blood Prince (Mentioned only)
- Harry Potter and the Half-Blood Prince (film)
- Harry Potter and the Deathly Hallows (Mentioned only)
- Harry Potter and the Deathly Hallows: Part 2
- LEGO Harry Potter: Building the Magical World
- LEGO Harry Potter: Years 1-4
- LEGO Harry Potter: Years 5-7
- Harry Potter Trading Card Game
- Harry Potter LEGO Sets
- Wonderbook: Book of Spells
- Harry Potter: The Creature Vault
|Professors: Herbert Beery · Pomona Sprout · Neville Longbottom|
|Textbooks: 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 Wonderous Water Plants|
|Hogwarts class: Herbology Award · Herbology Lesson Cup · Herbology Race Cup · Herbology Store|
|Hogwarts greenhouses: One · Two · Three · Four · Five · Six · Seven · Professor's Office|
|Herbologists: Herbert Beery · Miranda Goshawk · Elladora Ketteridge · Beaumont Marjoribanks · Nepali wizard · Phyllida Spore · Tilden Toots · Hadrian Whittle · Sir Winogrand · Selina Sapworthy|
|Plants Studied: Bouncing Bulb · Bubotuber · Devil's Snare · Fire Seed Bush · Mandrake · Mimbulus Mimbletonia · Puffapod · Screechsnap · Self-fertilising shrub · Snargaluff · Spiky Bush · Spiky Prickly Plant · Umbrella Flower · Venomous Tentacula · Walking plant · Whomping Willow · Wild rice|