any level, just use a leaf stone
Oddish evolves into Gloom with a leaf stone, or at level 21 Gloom evolves: Into Vileplume, using a leaf stone on Gloom. Into Bellosom, using a sun stone on Gloom. ^_^
Gloom and Sunkern.
Gloom
gloom into vileplume.
Gloom can be found on routes 121, 123 and in the safari zone on Pokemon ruby. If you are looking for anyother Pokemon, I recomend www.serebii.net they have all the info on Pokemon you'll ever need.
Use a Sun Stone on a Gloom
It evolves in Gloom at level 21.
its for evolving pokemon.. eg. gloom --> bellosum
Oddish, Gloom, Tropius.
Gloom, Weepinbell, Exceggcute and Nuzleaf
Where does Ruby Gloom live?
Weepinbell, Gloom and Exeggcute.