Pokémon S10 E31 The Grass-Type is Always Greener!

"Gotta catch 'em all!"

After Burmy evolved into Mothim, Ash and co continue through the Eterna Forest where, along the way, they meet Gardenia, an overenthusiastic fan of Grass-type Pokémon. Ash declares a battle with her and she accepts. Will Ash win against this Grass Geek, and could she be the only one?