Go to the flower shops in whatever game you are using with the shaymin, which must be an event shaymin. One of the ladies there will give you the flower.
no but it has a sky form
There is no evolution. But you can change its form into a skaymin. (Sky Shaymin)
shaymin can not evolve
It isn't the evolved form of shaymin it is the same Pokemon. To get it you trade your ordinary land form shaymin to Pokemon platinum and it changes into sky form. Only problem is Pokemon platinum dosent come out in England until next December. Hope this helps.
The land Shaymin. Your choice is to make it land or Sky. But it doesn't technically evolve. It transforms into a Sky Shaymin.
Shaymin's sky form is a form that the Pokemon character Shaymin can take.
u can't evolve a Shaymin. but if your referring to sky form, you still can't. Only on Patinum.
Simply put, it doesn't. You are probably referring to shaymin's form change. You can change it's form by showing the lady in the flower shop in goldenrod city (there's a lady standing out side in Floroma town in platinum) the shaymin from a 2009 event.
You can get Shaymin in sky form only in Pokemon Platinum Version.
skymin
You can't change Shaymin into Sky Form in Pokemon Diamond (that includes pearl). You can only change Shaymin into Sky Form in Pokemon Platinum (that includes Heart Gold and Soul Silver). You can get the Gracidea to change Shaymin into Sky Form.
Shaymin is a legendary Pokemon, thus it does not evolve. To change it into it's SKY FORME you need a gradedia flower. Which you can receive only from a wifi event that is past. In Pokemon black, a lady will give you one for free in Laconsa town.