It is the same way as Pokemon diamond and pearl because i used this and it helped me a lot!!!!
Yes, you are able to obtain Shaymin.
Event
Yes You Do.
Yes you can...
YesYou Can Get Shaymin Sky Form In Pokemon Platinum With A Cheat Code That Is A Special Flower.
Yes, you can transform Shaymin into a different form on Pokemon Platinum.
You can obtain the gracidea flower in one condition. You have to transfer the Shaymin from the Nintendo Event or from Oak's Letter via Mystery Gift in Pokemon Platinum. So first have the Shaymin in either Platinum, HG or SS and transfer it to your White game. PS. You needed 2 DS to transfer.
shaymin sky from that's it
Pokemon platinum you can also get shaymin
no shaymin's sky forme is exclusive to platinum
Shaymin doesn't have any evolutions, but it does have a Sky Forme in Pokemon Platinum.
She probly won't give it to you because you need to have shaymin in your party. Then she will give it to you.