Floo is a flowering plant with magical properties. Floo Powder is extracted from the flowers of this plant, as devised by the Medieval witch Ignatia Wildsmith, who happened fittingly to be the inventor of Floo Powder itself.
Behind the scenes
- On Pottermore, it is revealed that a single company, Floo-Pow, was licenced to make Floo Powder in Great Britain, and that the composition of its product was a "closely guarded secret" no one had managed to figure out. However, it does appear that there have been numerous attempts at creating homemade Floo powder called "Faux floo", which has caused injuries before.
- Harry Potter and the Chamber of Secrets (video game) (Mentioned only)