you cant
No, but you can catch some Johto Pokemon on the Sevii Islands.
sorry. There is no way to get to johto with Pokemon leaf.
After you beat the Pokemon league in emerald you can get one of the johto starters from prof. Birch then you trade to FR or LG.
No way you can't get a johto starter Pokemon in Pokemon leafgreen. The only way is to trade with someone to get it.
Johto is inaccessible on Leaf Green although Islands Four to Seven contain Johto Pokemon.
you cant go to johto but you could catch johto Pokemon on sevvi islands
You can't reach johto in leafgreen.
You can't go to Johto in Pokemon FireRed or LeafGreen.
i dont no it might be fake or not
You can't have to trade from johto
get all the Pokemon in the pokedex then talk to birch
You can't capture teddiursa in leafgreen but in emerald you can in a special johto area of the safari zone after beating the Pokemon league you can enter this area. Also trade the purified teddiursa from Pokemon xd gale of darkness to leafgreen or get the purified ursaring from Pokemon colosseum then breed it in leafgreen to get teddiursa.