Is not possible to get Growlithe in Pokémon Blue version. The only way to get it is to trade from Red version.
Chat with our AI personalities
There is a very special way in which you can get Growlithe in Pokémon Platinum version. You can find Growlithe on both Routes 201 and 202. There is a catch though, you need Pokémon FireRed Version inserted in the GBA game slot.
Growlithe doesnt evolve by level! It evolves by fire stone! to get the fire stone, you have to battle some trainers and get their phone number and they will call u when they find a stone to give you. you cant buy a fire stone
Take a vulpix or growlithe to the old man at the top of cerulean city. You hav to show him a lickitung and an oddish first and he will give you a clue each time to find which Pokemon to show him. and eventually he will want to see the Pokemon that a fire type and if you find it and show it to him (growlithe or vulpix) he will gie you a fire stone.
At the Pokémon Mansion.
He on route 36 and 37. if you havent seen him yet, walk up to a police officer outside goldenrod at nighttime and battle him. then look on your pokedex and check area for growlithe.