Herbology is only a Mandatory Class at Hogwarts School of Witchcraft and Wizardry for first through fifth year students. Sixth and Seventh Years need to sign up to take classes if they wish to continue their education in the subject. A word of caution, the plants do get far more dangerous in the sixth and seventh years, but the lessons are well watched over by the professors at the school. In order to continue into your sixth year, you must achieve a passing grade on their Herbology O.W.L.s, you may move into the advance class for your sixth and seventh year, where you will prepare for your Nastily Exhausting Wizarding Test.
If you have any questions, please feel free to visit the Herbology Office.
Students, please fill out the forum below if you wish to continue your education beyond your fifth year