Professor Sprout’s Greenhouse | Herbology Set from Harry Potter

An overview of Professor Sprout’s Greenhouse at the Warner Bros Studio

Greenhouse with magical plants at Harry Potter Warner Bros. Studio Tour, London.

The greenhouse was designed as a functional teaching space filled with hanging vines, soil-smudged windows, and rows of magical plant specimens in aged clay pots.
Central to the set are the Mandrakes, built with animatronics and silicone skin. Their detailed faces, limbs, and ear-splitting screams made them unforgettable in their film debut.
Weathered benches, watering cans, textbooks, and plant tags add to the realism, blending magical props with real-world gardening tools and techniques used by Professor Sprout.
Although most Hogwarts exterior scenes were filmed at real castles, the greenhouse interior was built entirely at the Studio and reused across several films with lighting and prop changes.

The filmmaking magic behind Professor Sprout’s Greenhouse

Mandrake animatronics and puppetry: Each Mandrake is operated using rods and motors to control wiggling limbs and twisting roots. Facial details were sculpted in clay and then cast in flexible silicone for a lifelike plant-creature hybrid.
Weathering with real soil and moss: The props team used soil, preserved moss, and crushed leaves to add texture to every surface. Greenhouse benches, pots, and even tools were hand-aged to match the damp, earthy feel of a working glasshouse.
Prop layering for realism: Layers of real and fake plant matter were arranged by set decorators to make each shot feel spontaneous and full. Dead leaves, broken pots, and spills helped avoid any overly polished or artificial look.
Sound design with shrieking Mandrakes: Mandrake cries were designed using layered animal sounds and pitched-up vocals. They were added in post-production to sync with puppet movements, giving each scream a sharp, unearthly tone.
Clever lighting to simulate daylight: Though filmed indoors, the greenhouse glows with filtered light through aged glass panels. Hidden light sources mimic sunbeams and shadows, creating the illusion of outdoor light on plants and props.

Moments from the films recreated here

Mandrake plant exhibit at Harry Potter Studio, London.

Herbology class with the Mandrakes

In Chamber of Secrets, students attend a Herbology lesson with Professor Sprout to repot Mandrakes. The greenhouse scene shows noisy, shrieking baby Mandrakes being pulled from soil, filmed on a specially built set filled with living and fabricated plants.

Harry Potter Studio Tours entrance with visitors in London.

Greenhouse chaos after the basilisk attack

Also in Chamber of Secrets, the greenhouse becomes a place of recovery and tension after the basilisk petrifies several students. Professor Sprout uses Mandrake Restorative Draught, connecting earlier lessons to later scenes filmed inside the same lush, overgrown set space.

Hogwarts model at Harry Potter Studio Tour, London.

Background glimpses during Hogwarts transitions

While not always the focus, the greenhouse appears throughout the series in wide shots of Hogwarts grounds. Scenes in Prisoner of Azkaban and Goblet of Fire show it in the background, surrounded by mist, vines, and fluttering magical plant life.

What to know before entering the Professor Sprout’s Greenhouse?

The Mandrakes can be loud when pulled from the pot. Sensitive visitors may prefer watching from a little distance rather than participating.
Lighting is bright and warm to mimic sunlight, which can cause some glare on the glass panels and pots during photos.
You can try pulling a Mandrake, but they are firmly secured for safety. Ask staff if you're unsure where to interact.
The greenhouse can get warm on busy days. Take your time near the entrance where airflow is better and views are still great.
Most elements are viewable at multiple angles, and the space is accessible for wheelchairs. Staff can help guide to less crowded areas.

Frequently Asked Questions about Professor Sprout’s Greenhouse

Can you pull a Mandrake during your visit?

Yes, there is an interactive Mandrake prop that visitors can try pulling from a pot. It moves realistically but is securely fastened for safety.

What materials were used to create the magical plants?

A mix of latex, silk, preserved moss, and foam was used. Some vines are sculpted and painted while others are real dried plants treated for longevity.

Is the greenhouse temperature-controlled like a real one?

Not exactly. It’s climate-controlled for comfort and safety, but lighting and decor make it feel warm and humid like a traditional glasshouse.

Was the entire set filmed indoors?

Yes, the greenhouse scenes were filmed at Leavesden Studios on a custom-built set. Exterior shots of the greenhouse were created separately and digitally blended with the landscape.

Is Professor Sprout’s costume original from the films?

Yes, the mannequin features the original robes worn by Miriam Margolyes in the films, complete with the signature hat and plant-filled apron.

Can you see magical plants besides Mandrakes here?

Yes, the set includes labelled magical plants like Bubotubers and Devil’s Snare. Many are tucked in corners or hanging above for added visual richness.

Are there greenhouse-related items in the Studio shop?

The shop sometimes offers themed items like potted Mandrake toys, gardening sets, and Herbology notebooks inspired by Sprout’s class and greenhouse decor.