First you need to beat the Elite 4 and get the national pokedex.
Then you can get the poke'radar (Prof. Rowan's lab, given to you Prof. Oak).
Then go to route 205 use the poke'radar in patches of grass to try and find it
note: it's rare and therefore hard to find.
source: http://bulbapedia.bulbagarden.net/wiki/Hoppip_(Pok%C3%A9mon)
Yes you can. Go to Route 205 South and use the Poke'radar. Keep trying until you find a Hoppip.
Floroma town East side use ur Poke Redar
With a pokeball.
jumpluff only appeares in silver gold and crystal and in a mass outbreak in diamond,pearl and platinum.
Do one of 3 things-Catch a Hoppip at Memorial Pillar-Catch a Hoppip at the Pokespot in XD-Snag one in Colloseum.
You have to catch it on your pokewalker. I think the noisy forest route.
* You don't catch it you evolve it from hoppip you find it around Florauma Town. * Are you desprit?
you can't catch him in platinum but in soulsilver or heartgold you can catch him then trade it to platinum.
how do you catch a mewtwo on Pokemon platinum
you cannot catch the 3 regi's in Pokemon platinum you have to catch them in Pokemon emerald then transfer them to Pokemon platinum. thnx
Catch Hoppip in the Five Isle Meadow or Memorial Pillar (Mostly) and get it to level 18.
No, it is inpossible to catch Jirachi on Diamon, Pearl or Platinum.