Herbology is the study of magical and mundane plants and fungi, making it the wizarding equivalent to botany. In Herbology, students learn to care for and utilize plants, and learn about their magical properties, and what they are used for. Many plants provide ingredients for potions and medicine, while others have magical effects of their own right.

Yrttitieto on Tylypahkassa käytävä oppiaine, jota on opettanut/opettaa Pomona Verso ja Neville Longbottom. Siinä käsitellään kasveja. Yrttitiedon oppitunnit käydään kasvihuoneissa Tylypahkan pihamailla.

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