You will need to use a Fire Stone on Growlithe in order for it to evolve, it will evolve into Arcanine.
Growlithe evolves into Arcanine when you give the Pokemon a fire stone.
You have to evolve growlithe.
You aren't able to evolve Growlithe by level, but you would have to use a fire stone to evolve it.
Get a Growlithe and evolve it.
You will need to use a Fire Stone on Growlithe in order for it to evolve, it will evolve into Arcanine.
Arcanine
Growlithe evolves into Arcanine when you give the Pokemon a fire stone.
First of all, it is evolve, not involve. To evolve Growlithe you must give it a firestone
Only when you use a fire stone on growlithe it will evolve.
You have to evolve growlithe.
You aren't able to evolve Growlithe by level, but you would have to use a fire stone to evolve it.
Fire stone
Get a Growlithe and evolve it.
Growlithe will evolve when you use a fire stone on it.
Growlithe evolves with the help of a Fire Stone
Eevee Growlithe Vulpix