A gloom will evolve into a vileplume.
eevee in lefeon
catch a Roselia then evolve it with a leaf stone.
Gloom Nuzleaf There may be more....
To get a Victreebel, use a leaf stone on Weepinbell.
Easy just use a leaf stone that's it.
You will have to evolve your exeggcute with a leaf stone. You can find exeggcute in the safari zone.
Pansage will evolve by using a Leaf Stone into Simisage.
weepin bell doesn't evolve at a certain level. you have to give it a leaf stone.
The leaf stone will evolve certain species of pokemon
You have to give it a leaf stone. Lvling up doesn't help.
well burmy evolves at level 20 but if you give it a leaf stone it will evolve into wordaman
Nuzleaf doesn't evolve in a certain level, you have to use a Leaf Stone on it and then it evolves into Shiftry.