- "Potter, skin Malfoy's shrivelfig for him!"
- —Severus Snape[src]
A Shrivelfig is a magical plant that originated in Abyssinia. When skinned, the liquid inside the plant, which is purple in colour, is used as an ingredient in the Shrinking Solution, just as the "shrivel" in the plant's name would seem to suggest, and the Elixir to Induce Euphoria. The ingredient can be purchased at the Apothecary in Diagon Alley for 3 galleons.
In 1992, Pomona Sprout had the second year students prune Shrivelfigs with shears during a Herbology class. When Harry Potter went to dispose of some withered stalks that he had trimmed off his Shrivelfig, he ran into Ernie Macmillan, and afterwards Ernie brought Hannah Abbott to work at the same plant as Harry and Ron Weasley. It was in this lesson Harry and Ron realised there were some spiders heading to the Forbidden Forest.
In 1993, Severus Snape taught his third year Potions students to brew the Shrinking Solution. Draco Malfoy claimed that his injured arm prevented him from tending to his own ingredients, so Snape ordered Harry Potter to peel the required Shrivelfigs for Draco, a task which Harry did as quickly as possible.