"We’ll be repotting Mandrakes today. Now, who can tell me the properties of the Mandrake?"
—Professor Sprout teaching second years about Mandrakes in Greenhouse Three[src]

Greenhouse Three was where Herbology classes were taught to every student, except first-years, because it was used to house several spices of magical plants that were deemed too dangerous for them to handle.[1] The room had more dangerous species, such as the Venomous Tentacula, as it was for the advanced students.[1] First year students took the class in Greenhouse One, which had no dangerous material.[2]


The greenhouse had four areas:

Greenhouse Three in the 1996-1997 school year

The interior of Greenhouse Three

The Herbology Classroom

Main article: Herbology classroom

This area consisted on a square-shaped room, with some tables for students and one Venomous Tentacula.[3]

Flora Faction

Main article: Flora Faction

This area contained all kind of flowers and several mandrakes.[3]

Evergreen Environment

Main article: Evergreen Environment

This was an area with a lot of evergreen trees.[3]

Vine Vicinity

Main article: Vine Vicinity

This was the largest area. It had lots of mandrakes, slugs and flora.[3]


1992–1993 school year

Pomona Sprout taught her second year students how to pot young Mandrakes.[1]

1993 and after

Pomona Sprout and eventually Neville Longbottom taught advanced Herbology here.

Behind the scenes


Notes and references

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 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 · Mistletoe · 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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