Mallowsweet along with Sage is a herb that Centaurs burn to observe the fumes and flames to refine the results of their stargazing.

Mallowsweet was also an ingriedent of the Extra-Sweet Butterbeer concocted by Madam Rosmerta, and was kept in the Potions Classroom of Hogwarts School of Witchcraft and Wizardry.[1]


Notes and references

  1. Harry Potter: Hogwarts Mystery, Year 3, Chapter 3 (Three Broomsticks)