Answer · verified 2026-09-29

Meganium FAQ · type, weaknesses, evolution, stats

TL;DR. Meganium (#0154) is a grass-type Pokémon from Generation 2 (Johto). The Herb Pokémon. The aroma that rises from its petals contains a substance that calms aggressive feelings.

Meganium
Grass

The aroma that rises from its petals contains a substance that calms aggressive feelings.

Pokédex #0154 Gen 2 · Johto Herb Pokémon

What type is Meganium?

Meganium is a pure Grass-type Pokémon. It has a single typing, which means a simpler matchup chart but also fewer resistances.

What is Meganium weak to?

Meganium takes 2× damage from Fire, Ice, Poison, Flying, Bug. It has no 4× weaknesses.

What is Meganium resistant to?

Meganium resists Water, Grass, Electric, Ground. It has no full immunities.

How does Meganium evolve?

Meganium evolves from Bayleef (Level 32). Meganium evolves into Mega Meganium (Mega Evolve with Meganiumite (battle-only)).

What generation is Meganium from?

Meganium was introduced in Generation II (the Johto region). Its Pokédex number is #0154.

What are Meganium's base stats?

Meganium has HP 80, Attack 82, Defense 100, Special Attack 83, Special Defense 100, and Speed 80. Total base stat total: 525.

What are Meganium's abilities?

Meganium can have the ability Overgrow, plus the Hidden Ability Leaf Guard.

Is Meganium legendary or mythical?

No. Meganium is a regular Pokémon, not classified as Legendary or Mythical.