I don't think you can get one unless you have a Turtwig and make it evolve into one. But to have a Turtwig you'll have to pick it from the very start of the game.
If you've got really far in the game, don't bother restarting. It's not worth it for one pokemon.
Believe me, I payed the price for it.
a trainer in victory road have a torterra
You can only get Torterra from Diamond, Pearl, and Platinum.
In pokemon diamond and pearl
if you means torterra, only if you have chosen turtwig as starter, or traded turtwig, grotle or torterra
Turtwig is a starter pokemon in Diamond/Pearl/Platinum, Torterra is one of the evolved forms of Turtwig.
You cant find a Torterra, you have to start off with Turtwig from the very start or trade a Pokemon with someone.
The Move Tutor in a building on Route 228 will teach Torterra Frenzy Plant. (If you are playing Diamond or Pearl, that is.)
You can't; you must evolve your Turtwig starter.
you can get shaymin,jirachi,torterra(starter)
with empoleon ,infernape and torterra
you cant you have to start with turtwig and evolve it or trade with someone
You will need to evolve a Grotle at Level 32 in order to get Torterra.