When does gloom evolve?
Gloom is the evolved form of Oddish, as of level 21. Gloom evolves into Vileplume by use of a Leaf Stone. Gloom can also evolve into Bellossom by use of a Sun Stone.
Oddish evolves into Gloom at Level 21. Gloom can then evolve into either Vileplume using a Leaf Stone, or Bellossom using a Sun Stone.
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