you find it at route 221. (need to obtain surf first)
It is in Route 221.
on route 209
route 221
I think you can get it near palpark. Or you can evolve a bonsly.
I don't know, but i do know you can find them on route 221.
You can see Sudowoodo in these locations: Route 209 - PKMN Breeder (Male) Albert (VS Seeker Rematch, 2nd change) Route 216 - Ace Trainer (Female) Maria Route 221 - Wild (25% chance)
You can't find Bulbasaur in the wild on Pokemon Diamond or Pearl (not sure about Platinum).
In platinum, you can find them in only two locations. One of the locations is is route 221. The second location is at route 214.
First go to Sandgem Town. You need surf and then take Route 219 and as you surf go to Route 220. Then take east turn to take Route 221. Then you will see a tiny island where there will be lots of grass. You will find sudowoodo in the grass.
Sudowoodo is a rock type pokemon. Dont be fooled and think it is grass type.
you can obtain the pal park after you get the national pokedex, to get the national pokedex see all the the wild sihno pokemon, you only need to see them not catch them.
if u r in d-p you can see it in the Pokemon league