you cant catch him you have to migrate him from the GBA Fire Red or Leaf Green
You cannot catch bulbasaur in diamond and pearl. If you have firered or leafgreen can set 6 Pokemon free in pal park and catch them there.
You can't, Bulbasaur is unobtainable. You have to trade, hack, cheat or get it from mystery gift.
You can't regulary.You can only get bulbasaur from the GTS(Global Trade Station) or from cheating(Action Replay). ORRRRRRRRR you can migrate from Pokemon firered or leafgreen
Trade it over from FireRed or LeafGreen. If you had the starter as: # Bulbasaur: You will be able to catch Entei # Charmander: You will be able to catch Suicune # Squirtle: You will be able to catch Raikou
Bulbasaur is a starter for the Johto Region, so you cant catch him in the Sinnoh.
You cannot capture Bulbasaur in Diamond or Pearl (not sure about Platinum).
you cant its impossible
You cannot find bulbasaur on Pokemon pearl, diamond and platinum but you can transfer from GBA via pal park.
You cannot catch a Bulbasaur in the wild. You must defeat Red on top of Mt. Silver. Then, you can go to Professor Oak and choose the bulbasaur.
Bulbasaur wanted to go with him.
you can't
You can't find Bulbasaur in the wild on Pokemon Diamond or Pearl (not sure about Platinum).