Overview

A Bouncing Bulb was a special plant that bounces around when it is not held down. The main stem of the Bouncing Bulb was a big purple bulb, with leaves growing on top.
Young Bouncing Bulbs were small and easy to manage, but mature ones could grow as big as doorways. When feeling threatened, Bouncing Bulbs could act aggressively by jumping towards the potential attacker and trying to hit them. A young Bulb could be stopped with a simple Knockback Jinx, but a mature one would need the Fire-Making Spell (Incendio) to be used on it, as it was stronger.

Specifics

When Beatrix Bloxam was a child, she was deeply affected by a scandalous story she overheard. The story involved her uncle Nobby, a hag from the neighborhood, and a sack of Bouncing Bulbs.
In the 19th century, a Dark wizard, whose identity remains unknown, tried to take control of the British Ministry of Magic using Chinese Chomping Cabbages. However, their plan was foiled by Auror Helen Thistlewood, who only had a basket of Bouncing Bulbs as her weapon.
In 1994, Professor Sprout had fourth-year Herbology students repot these plants. On November 2nd, one of the plants escaped Harry Potter's grip and hit him in the face.

Credits/References

Written by Emil Crim.
Base code by Andrew Sutherland, edited by Iselin Merilä and Desmond Gray.