train to level 25
Growlithe doesn't evolve by level, but with a Fire Stone
Level 23.
level 16
Level 40.
Level 55.
Paras should evolve in Parasect at level 24.
Only when you use a fire stone on growlithe it will evolve.
You have to Trade it from fire red or leaf green.
for me i just traded with my freind that had one in fire red.
You have to trade it to another player for it to evolve.
It evolves at level 28.
it evoles at level 55