The Horklump resembles a fleshy pink mushroom covered in black bristles. Horklumps spread sinewy tentacles rather than mysellium into the ground to look for their desired food of earthworms. They are fast breeders, and can cover an average garden in a matter of days. The Horklump is the favoured delicacy of the Gnome. Streeler venom is one of the few known substances that can kill Horklumps.
To collect the mushroom whole without any damage, a Levitation Charm can be used to remove them.