Herbology is the study of magical plants and fungi, including how to care for them and use their magical properties. Some magical plants form important ingredients in potions, others have magical effects on their own.

At Hogwarts, Herbology is taught by Professor Sprout. She holds her classes in the greenhouses. For the Gryffindors, Herbology is a double class with the Hufflepuffs. The classes include plenty of hands-on activities, including pruning alihotsy bushes, repotting mandrakes, and harvesting bubotubor pus. Neville Longbottom is particularly good at Herbology. It's the only class in which he usually raises his hand.

• dragon dung compost 
• used for planting
• greenhouses
• there are several greenhouses; first years only work in greenhouse 1, but in the second year the students work with more dangerous plants in greenhouse 3
• dragon-hide gloves 
• often worn when handling dangerous plants such as bubotubors
• ear muffs (including a pair of fluffy pink ones)
• used by students to protect themselves from plants like the Mandrake which can harm with the sounds they make; these ear muffs are apparently magical as they completely block all sound
• slug pellets
• Hagrid has been known to carry a few of these around in his pockets
• Flesh-Eating Slug repellent
• occasionally required to keep Flesh Eating Slugs out of Hogwarts' cabbages, these must be bought on Knockturn Alley, which suggests that they are somewhat Dark in nature
• Mooncalf dung 
• when collected at the full moon (probably the ONLY time you can collect it), this substance makes magical herbs and flowers grow extremely well. (FB)

• Magical Water Plants of the Mediterranean (GF
• One Thousand Magical Herbs and Fungi
• Encyclopedia of Toadstools (CS

aconite
(also called monkshood and wolfbane) (SS8)

asphodel, root of 
(SS8)

beans

belladonna, essense of 
(GF10)

bubotubor pus (GF)
good against stubborn acne; yellowish, smells of petrol

Bundimun secretion
(FB) 

cabbages

daisy roots
(PA7) chopped

fluxweed
(CS10)

ginger
roots (GF27) cut

knotgrass
(CS10, 11)

mandrake
(CS

monkshood
(see aconite)

nettles
dried (SS8)

pumpkins (Hagrid grows these behind his hut)

wolfsbane
(see aconite)

wormwood
(SS8)