Valerian

Valerian is a plant with magical properties. Valerian is used as an ingredient to Treacle fudge. Valerian roots are used in potion-making; they are one of the ingredients of the Draught of Living Death. Rubeus Hagrid grows Valerian in his garden.

Appearances

 * Harry Potter and the Chamber of Secrets (video game)
 * Harry Potter and the Half-Blood Prince