Welcome to Herbology, currently taught by Professor Petunia.
The Greenhouses are where Herbology lessons are taught, consisting of seven Greenhouses. Greenhouse One houses the youngest and safest of Hogwart's many plants, and used by first-years in their lessons. Greenhouse Two is a more intermediate classroom, mostly used for theory and textbook work, for years two to seven. Greenhouse Three houses some of the the actual fauna and plantlife, such as Mandrakes and Leaping Toadstools. It is utilised for practical study for years two to seven. Greenhouse Four, Five, Six and Seven are used for advanced Herbology students, the latter three for those who are taking it at N.E.W.T level. In addition, these Greenhouses hold the vast majority of the fauna kept in the school. Finally, there is the Professor's private office, where only the most dangerous and exotic plants, such as the famous Venomous Tentacula are kept, under the personal care of the Professor. In addition to Herbology, the Greenhouses are vital in supplying the school, in particular Potion classes, with vital horticultural ingredients.