Unfortunately you can't. To get it you have to trade someone who has one. In Fire Red for example.
Trade
Growlith Issac Lim
Growlithe will evolve when you use a fire stone on it.
Vulpix > Ninetales Growlith > Arcanine Eevee > Flareon i think that's it
SOulsilver
You can catch a Growlith in the Pokemon Mansion on Cinnabar Island.
Fire Stone
Trade
you cant.you have to insert Pokemon firered.
Growlith Issac Lim
You have to trade. Ps. It's Growlithe
In the Pokemon mansion but only in fire red
you use a firestone on it
Growlithe is found in the Pokemon Mansion on Cinnabar Island in Pokemon Firered.
growlith and kyogre SS is vulpix and groudon.
I'd say Mareep, Totadile, Machop, and Growlith.
Fire stone