Oddish-Lvl 21-Gloom-Leaf Stone-Vileplume
Exeggcute-Leaf Stone-Exeggutor
Bellsprout-Lvl 24-Weepinbell-Leaf Stone-Victreebell
Seedot-Lvl 14-Nuzleaf-Leaf Stone-Shiftry
It depends on which version.
evolve pokemon
you can't catch it. evolve it from the Pokemon after oddish with a leaf Stone
if you have a leaf stone weepinbell will evolve
gloom
Take a leaf stone and use it on him.
Leaf Stone: Exeggcute, Gloom, Weepinbel Water Stone: Staryu, Eevee, Poliwhirl Fire Stone: Vulpix, Growlithe, Eevee Moon Stone: Clefairy, Jigglypuff, Nidorina, Nidorino I'm about 90 % sure that this is all of them.
On Monday you can get a leaf stone, Tuesday you can get a fire stone, Wednesday you can get a water stone
By a leaf stone (vileplume) or sun stone (bellossom)
In SoulSilver he gives you a Leaf Stone if you show him an Oddish :) Hope that helped-- Taylor
weepinbell, exeggcute, gloom, nuzleaf, and I think that's it :)
You have to use a leaf stone on your eevee. Sorry, I don't know where to find a leaf stone though. : ) hope this helped!