fire stone
Growlithe can Evolve only with use of a fire stone. Fire stones can be won at the bug catching contests.
fire stone
There is no specific place for a growithe to evolve. you just need to give it a fire stone
You use a fire stone at any level you want.
Wooper will evolve at Level 20.
On level 40
level 31
Level 55.
Farfetch'd is a Pokemon that does not evolve.
Level 55
35
Around level 18.