"I hope she stays, that woman! That's more of what I thought Care of Magical Creatures would be like... proper creatures like unicorns, not monsters..."
—Grubbly-Plank's first lesson[src]

Professor Wilhelmina Grubbly-Plank was a substitute Care of Magical Creatures teacher. She was a witch with close-cropped grey hair and a very prominent chin. She was first met by Harry Potter's batch in 1994, taking over lessons when Professor Rubeus Hagrid was unable to teach. She taught the class again in part of the next school year when Hagrid was away on a mission for Albus Dumbledore.

Harry trusted her enough to ask her to heal his owl Hedwig when she was injured in 1995. She was brusque in her replies to inquiries regarding Hagrid's whereabouts.


Early life

Wilhelmina Grubbly-Plank was born in or before 1930. She presumably sat for O.W.L.s and N.E.W.T.s in her youth, in order to have her current job, and likely achieved a high grade in Care of Magical Creatures.

Hogwarts substitute teacher


Unicorn Students pm

Professor Grubbly-Plank introduces students to the unicorns

Professor Grubbly-Plank took over Rubeus Hagrid's lessons during January 1995, because Hagrid was indisposed after the defamatory article about him written by Rita Skeeter. She taught the students about Unicorns. When Hagrid resumed teaching in early February, Grubbly-Plank was no longer required and she left the school. All the students present in her Care of Magical Creature lessons found her to be a good teacher.


As Hagrid was absent in the beginning of the next school year, Grubbly-Plank was temporarily put in charge of Care of Magical Creatures again. She led the first years across the Lake on the enchanted boats, which was usually Hagrid's responsibility.


Professor Grubbly-Plank and other teachers listen to a new teacher for the Defence Against the Dark Arts, Dolores Umbridge

When Hedwig was hurt when returning from London on 7 October 1995, Harry asked Grubbly-Plank to heal her, which she did without much difficulty. Grubbly-Plank passed Dolores Umbridge's (then-High Inquisitor of Hogwarts) inspection without incident while she taught her students about Bowtruckles and gave out a homework assignments, to sketch and label a drawing of one.

After Hagrid's return on 7 November, Grubbly-Plank was relieved of her duties again. When Hagrid planned to leave Hogwarts at the end of this school year, he implied that Grubbly-Plank would take on the class full-time. When he ran away from Umbridge and the Aurors, it is unknown whether she returned to teach Care of Magical Creatures for the remainder of that school year, though following the Battle of the Department of Mysteries, Dumbledore did order Cornelius Fudge to have his Aurors call off the search for Hagrid so that he could return to work, indicating that he resumed the position following that event.[1]

Physical appearance

Professor Grubbly-Plank was described as an elderly witch with short grey hair and a pointed chin. She smoked a pipe.

Personality and traits

Wilhelmina Grubbly-Plank is a very competent teacher, passing even Dolores Umbridge's inspection without incident (though Umbridge was disappointed by her expressing approval of Dumbledore). She seems always level-headed, cheerful and efficient, and claims to be very happy with the way Dumbledore runs the school.

Many of the students (Gryffindors included) feel Professor Grubbly-Plank is a somewhat better teacher than Hagrid. Harry, Ron, and Hermione do not admit this, however, simply because of their close friendship with Hagrid. In 1996, when Hagrid states that he wondered whether they would have continued with Care of Magical Creatures had she still been teaching, the three of them convincingly lie that she was a dreadful teacher.[2] Professor Grubbly-Plank also seems to have a bit of respect for Hagrid as she is never seen criticising his teaching skills and complimented his training of the school Thestrals. She is also known to smoke a pipe.

Magical abilities and skills

  • Care of Magical Creatures: Professor Grubbly-Plank was knowledgeable in Care of Magical Creatures. She was appointed replacement Professor at Hogwarts at least twice and passed Dolores Umbridge's Ministry of Magic inspection.
  • Healing: She was skilled enough to heal Harry Potter's owl Hedwig when she was injured. It's unknown if this was magical or non-magical Healing or a combination.

Behind the scenes


The Harry Potter Wiki has 12 images related to Wilhelmina Grubbly-Plank.

Care of Magical Creatures
Care of Magical Creatures at Hogwarts
Hagrid's Hut · Forbidden Forest · Care of Magical Creatures classroom · Magical Creatures (club)
Professors Silvanus Kettleburn · Rubeus Hagrid · Wilhelmina Grubbly-Plank (substitute teacher)
Textbooks The Monster Book of Monsters · Fantastic Beasts and Where to Find Them
Creatures studied at Hogwarts
Blast-Ended Skrewt · Bowtruckle · Crup · Fire crab · Flobberworm · Hippogriff · Knarl · Kneazle · Murtlap · Niffler · Porlock · Salamander · Streeler · Thestral · Unicorn
Hogwarts Faculty
Founders Godric Gryffindor | Helga Hufflepuff | Rowena Ravenclaw | Salazar Slytherin
Headteachers Eupraxia Mole | Vulpus | Phyllida Spore | Dexter Fortescue | Eoessa Sakndenberg | Ambrose Swott | Everard | Vindictus Veridian | Dilys Derwent | Quintin Trimble | Limebert | Phineas Nigellus Black | Walter Aragon | Basil Fronsac | Armando Dippet | Albus Dumbledore | Dolores Umbridge | Severus Snape | Minerva McGonagall | Brian Gagwilde | Elizabeth Burke
Deputy Heads Minerva McGonagall | Amycus Carrow | Alecto Carrow
Heads of House Filius Flitwick | Minerva McGonagall | Horace Slughorn | Severus Snape | Pomona Sprout
Teaching Staff Bartholomew | Bathsheda Babbling | Herbert Beery | Cuthbert Binns | Charity Burbage | Alecto Carrow | Amycus Carrow | Albus Dumbledore | Firenze | Filius Flitwick | Fortinbras | Rubeus Hagrid | Rolanda Hooch | Arsenius Jigger | Silvanus Kettleburn | Gilderoy Lockhart | Neville Longbottom | Remus Lupin | Minerva McGonagall | Galatea Merrythought | Quirinus Quirrell | Aurora Sinistra | Horace Slughorn | Severus Snape | Pomona Sprout | Swoopstikes | Sybill Trelawney | Septima Vector | Unidentified witch | |Unnamed Potions Professor (16th century) | Unnamed Potions Professor (2021)
Support Staff Boil-ridden house-elf | Rancorous Carpe | Dobby | Argus Filch | Wilhelmina Grubbly-Plank | Rubeus Hagrid | Rolanda Hooch | Hankerton Humble | Kreacher | Ogg | Irma Pince | Poppy Pomfrey | Apollyon Pringle | Lucinda Thomsonicle-Pocus | Winky

Notes and references

  1. Harry Potter and the Order of the Phoenix, Chapter 36 (The Only One He Ever Feared)
  2. Harry Potter and the Half-Blood Prince, Chapter 11 (Hermione's Helping Hand)