You need a Shiny Stone to evolve Roselia into Roserade.
I would do it at level 25 but its up to to you
You'll need to make it have high happiness/friendship during the day to make it evolve into Roselia.
in order to evolve Roselia you have to use a sun stone on it You use a shiny stone, not a sun stone.
Roselia only evolves in Pokémon Platinum, Diamond, Pearl, HeartGold and SoulSilver. In order to evolve Roselia, you have to use a Shiny Stone on it, it doesn't evolve by any level.
it evolves into Roselia same thing on Pokemon diamond
A Roselia.It doesn't matter what level i think. Togetic is also evolved into a togekiss.
Roselia only evolves in Pokemon platinum, diamond, and pearl Roselia evolves into roserade if you use a sun stone on it
You can't evolve budew by leveling it up because you need to get high friendship battle more to gain friendship
Budew evolves via happiness. Depending on how happy it is, Budew could evolve at any level.
Budew evolves into Roselia with: Max Friendship DayTime and then when you get these requirements, just level up! Then poof! You'll now have a Roselia, Roselia evolves into Roserade with a Shiny Stone
I don't think Roselia evolves in Pokemon Sapphire, but i do know that it evolves in Pokemon Diamond and Pearl. If I'm wrong please do tell ASAP. Thank You.
the Pokemon that shiny stone evolves is Togetic -> Togekiss Roselia -> Roserade