When should you evolve Growlithe?
So, the earliest you should evolve your Growlithe is level 39, while you don’t have to wait after you reach level 45 with it.
What level does Growlithe have to be to evolve?
Among the small list of stone evolutions, Growlithe is only one of four Pokémon that evolves using the Fire Stone. Before Pokémon Sword & Pokémon Shield, it was ideal to evolve Growlithe at level 45 to get all of his moves, but with the Move Reminder, you can learn all of Growlithe’s moves without having to wait.
