eevee evolves through different stones depending which Pokemon you want, fire water or thunder stone all work EDIT:and if you level it up with high enough freind ship between 4am and 8pm it will turn into espeon and if you level it up with a high enough freind ship between 8 pm and 4 am it will turn evole into umbreon dark espeon psychic :)
Eevee can not evolve into porygon.
Evolve Eevee, or trade.
get an eevee and evolve it into a thunderstone
To make Eevee evolve into an Umbreon, you have to level it up with high happiness at night.
A water stone
The Icy Rock is not in it, which is needed to evolve an Eevee into a Glaceon.
you can find a leaf stone in viridian forest in kanto in heartgold
To evolve the Pokémon Eevee in Pokémon HeartGold and SoulSilver, you can choose either of the two choices described below:Train Eevee in the nighttime when it has max happiness.Train Eevee in the nighttime when it is around a Moon Shard.Steps have nothing to do with the evolution of Eevee.
Can only evolve from Eevee if it gains a level while on Route 217, so you must trade an Eevee over to Diamond, Pearl, or Platinum and evolve it there, since there is no Route 217 in HeartGold and SoulSilver.
u can't u have to level up eevee near snowpoint city in diamond/pearl/platinum and trade into soulsilver and heartgold
you use a fire stone on eevee to evolve it into flareon thunder stone = jolton water stone = vaporeon full happenes in day you get espeon night time you get umbreonYou cannot evolve an Eevee into a Glaceon in Pokémon HeartGold, you would have to trade it to either Pokémon Diamond, Pokémon Pearl or Pokémon Platinum and evolve it into a Glaceon there and then trade it back to HeartGold.
It depends on where you have found it and in soulsilver or heartgold........