You can't. Trade it from Heart Gold.
You can't catch one in SoulSilver. But you can catch it in HeartGold by the Safari Zone.
I think you can get a Growlithe just outside the Safari Zone Gate. Otherwise you'd have to trade a Growlithe from Heart Gold. ( Growlithe was replaced with Vulpix in Soul Silver.) Hope this helped! :)
you can't sorry NEED HEARTGOLD
You have to catch a Growlithe, then give it a Fire Stone. It evolves.
trade with heart gold soul silver gets vulpix heart gold gets growlithe
You can't. In Soul Silver, you can catch a Vulpix but not a Growlithe. In Heart Gold, you can catch a Growlithe but not a Vulpix. I recommend trading a Vulpix (or any Pokemon, really) to someone with a Heart Gold game in exchange for a Growlithe.
The only way you can get a Growlithe in SOUL SILVER is by trading with someone who has HEART GOLD. It is not possible to get a Growlithe in SOUL SILVER.
I know you can't catch one. Vulpix is the SS exclusive and I yet to see a way to get one on HG (which would be the Growlithe for you). Best bet would be the GTS.
You can catch Lugia, and evolve Growlithe into Aracanine, which is not considered legendary, but literally has the title of Legendary Pokemon. Hope this helps!
you must trade from hg
Its not in heart gold only growlithe is. you have to trade from soul silver or use the pal park go get it from gba games