U don't
Evee is not availiable in Pokemon Sapphire.
You don't.
Vulpix, Evee, Growlithe.
Shellder, Staryu, Lombre, Evee.
i think u have to trade from Pokemon leafgreen or firered
No because there is no clock in leafgreen you must trade evee to a game with an internal clock to make it evolve to evee those games are ruby, sapphire and emerald also heartgold, soulsilver, diamond, pearl and platinum.
after beating league champion, compliting first pokedex (not jirachi and deoxsys) then random in woods.
Trade it to ruby,sapphire or emerald have them evolve your evee at night then give it back to leafgreen.
If you breed a evee you will get an egg when it hatches it will be evee this is a great way to get all the forms of evee.
Evee is given to you in Celadon Mansion.
These are all the forms i will note if you can't get them in firered or leafgreen or ruby or sapphire or emerald: Evee can evolve to vaporeon using a water stone on it, Evee and a thunderstone will get you jolteon, evee and a fire stone will get you flareon, Now there is a thing called kindness each Pokemon grows to like you after it becomes stronger or when you give it things like protein. Use protein, iron, carbos, zinc, calcium and hp up on your evee and have it level up in a ruby or sapphire or emerald game and it will evolve either into Espeon or Umbreon depending if its morning or night. Now there are new forms of evee only exclusive in diamond and pearl and platinum, to get them you first again need your evee to be friendly with you but on a condition there are two special stones one in the snowpoint area and one in the area of the grass city sorry i forgot the name to it.. But you must level up your evee next to these stones and it will become a glacieon in the snow area and a leafeon in the grass area.
Evee + Ditto in daycare