oh, come on guys! Spell for making your hair longer? It's easier way to make them grow really fast and you don't have to cast a spell for that.
Every night, when you're going to sleep say to yourself that "during the night my hair will grow really fast (or will be brighter, darker, start to curl or so...)" and try to visualise that it's really happening. I't works for real. I achieved 2-3 inches a month, and a bit brightened my eyes (from hazel to dark gold).
Good luck :)