#0044 · Kanto · Generation 1

Gloom

Weed Pokémon · Grass/Poison-type

Gloom is a Grass/Poison-type Pokémon, the Weed Pokémon, number 44 (#0044) in the National Pokédex. It was introduced in Generation 1 and comes from the Kanto region. It is 0.8 m tall and weighs 8.6 kg.

Gloom's stench can make people faint from over 1.6 km (a mile) away, yet the Pokédex says about one person in a thousand enjoys sniffing it. The sticky stuff dripping from its mouth looks like drool but is actually nectar for catching prey.

How to pronounce Gloom

Gloom is pronounced GLOOM. The capital letters show the stressed syllable.

Listen to Gloom said out loud:

In Japanese it is クサイハナ (Kusaihana).

Hear every other name on the Pokémon pronunciation guide.

Lore

Biology

Gloom is a blue, two-legged plant with a dark reddish-brown flower on its head, ringed by four leaves of the same colour. It is 0.8 m tall and weighs 8.6 kg. Bulbapedia says a female's petals each carry one big spot, while a male's carry many small ones. The Pokédex says the nectar leaking from its mouth is used to attract prey, and Bulbapedia adds that it also works as fertiliser.

Behaviour

Gloom's stench gets worse when it is in danger, and the Pokédex says it does not give off its usual stink when it feels calm and secure. Despite the odour, Bulbapedia notes it is a key ingredient in some perfumes.

Habitat

The Pokédex habitat is grassland. In Scarlet and Violet it arrives by trade or Pokémon HOME transfer, and appears in The Indigo Disk's Coastal Biome and 3-star Tera Raids; Bulbapedia lists it as unobtainable in Legends: Z-A.

Powers

Its Ability Chlorophyll doubles its Speed in strong sunlight, and the hidden Ability Stench gives its hits a small chance to make foes flinch. It attacks with Acid and Petal Dance, drains with Giga Drain and Moonblast, and sets up with Sleep Powder, Stun Spore and Sweet Scent. Its base Special Attack of 85 makes it a slow special attacker.

Name origin

Gloom may blend 'gloom', 'goo' or 'glue' (for the sticky nectar) with 'bloom', and might also involve 'glume', a leaf-like plant part. The Japanese name is Kusaihana (クサイハナ), possibly from kusai hana, 'stinking flower'.

Design inspiration

Atsuko Nishida designed Gloom. It appears to be based on the mandrake and on the budding stage of Rafflesia, a parasitic plant famous for its huge, foul-smelling flowers. These are fan readings, not official statements.

Evolution notes

Oddish becomes Gloom at level 21; Gloom then needs a Leaf Stone to become Vileplume or a Sun Stone to become Bellossom. In FireRed and LeafGreen, Gloom cannot become Bellossom until the player has unlocked the National Pokédex.

In the games

Gloom first appeared in Red and Green (Red and Blue outside Japan), wild on Routes 12 to 15 in Red, Japanese Blue and Yellow, which adds Cerulean Cave.

In the anime

Erika's Gloom debuted in 'Pokémon Scent-sation!'; it once saved her from a Grimer, and she uses its stench to make perfume. In 'Whichever Way the Wind Blows', wind carrying Leaf Stone and Sun Stone fragments makes several Gloom evolve into Vileplume or Bellossom.

Fun facts

• Gloom has the Ability Chlorophyll, but Bulbapedia points out that Rafflesia, the plant it resembles, contains no chlorophyll.
• In Let's Go, Pikachu! and Let's Go, Eevee!, Gloom can only become Vileplume, because Bellossom is not in those games.
• Emerald's Pokédex claims that one whiff of its honey can cause memory loss.

Sources: Bulbapedia: Gloom (Pokémon) · Serebii: Gloom (Scarlet/Violet Pokédex)

Base stats

• HP: 60
• Attack: 65
• Defense: 70
• Sp. Atk: 85
• Sp. Def: 75
• Speed: 40

Gloom’s base stat total is 395. Its highest stat is Sp. Atk.

Type matchups

What is Gloom weak to?

Gloom takes extra damage from Fire (2×), Ice (2×), Flying (2×), Psychic (2×) moves.

It resists Grass (¼×), Water (½×), Electric (½×), Fighting (½×), Fairy (½×).

Evolution

What does Gloom evolve from?

Gloom evolves from Oddish at level 21.

How does Gloom evolve?

Gloom evolves into Vileplume (Leaf Stone). Gloom evolves into Bellossom (Sun Stone).

The whole family: Oddish, Gloom, Vileplume, Bellossom.

Abilities

• Chlorophyll: Doubles Speed during strong sunlight.
• Stench (hidden ability): Has a 10% chance of making target Pokémon flinch with each hit.

Moves

Moves Gloom learns by level up in Scarlet / Violet

TM moves (28)

Gloom can learn 28 moves from TMs in Scarlet / Violet: Charm, Protect, Acid Spray, Trailblaze, Facade, Magical Leaf, Venoshock, Endure, Sunny Day, Bullet Seed, Sleep Talk, Seed Bomb, Grass Knot, Rest, Swords Dance, Substitute, Giga Drain, Energy Ball, Helping Hand, Pollen Puff, Grassy Terrain, Sludge Bomb, Leaf Storm, Solar Beam, Tera Blast, Toxic, Grassy Glide, Petal Blizzard.

Egg moves (9):After You, Flail, Ingrain, Leech Seed, Razor Leaf, Strength Sap, Synthesis, Teeter Dance, Tickle.

Breeding & training

• Gender: 50% male, 50% female.
• Egg groups: Grass.
• Egg cycles: 20 (steps to hatch, Scarlet/Violet: 2,560).
• Catch rate: 120 out of 255.
• Base friendship (Gen 8 onward): 50.
• Growth rate: Medium Slow (1,059,860 experience points to reach level 100).
• Defeating it gives 2 Sp. Atk effort values.
• Base experience yield: 138.

Pokédex entries

What appears to be drool is actually sweet honey. It is very sticky and clings stubbornly if touched. (Gold, HeartGold, Shield)

Its pistils exude an incredibly foul odor. The horrid stench can cause fainting at a distance of 1.25 miles. (FireRed, Sword)

Smells incredibly foul! However, around one out of a thousand people enjoy sniffing its nose-bending stink. (X, Let’s Go, Pikachu!, Let’s Go, Eevee!)

From its mouth Gloom drips honey that smells absolutely horrible. Apparently, it loves the horrid stench. It sniffs the noxious fumes and then drools even more of its honey. (Sapphire, Alpha Sapphire)

Gloom releases a foul fragrance from the pistil of its flower. When faced with danger, the stench worsens. If this Pokémon is feeling calm and secure, it does not release its usual stinky aroma. (Ruby, Omega Ruby)

The honey it drools from its mouth smells so atrocious, it can curl noses more than a mile away. (Diamond, Pearl, Platinum, Black, White, Black 2, White 2, Y)

Names around the world

Trivia

• Taller than 39% of all Pokémon (0.8 m).
• Heavier than 25% of all Pokémon (8.6 kg).
• Base stat total 395, ranked #640 of 1,025.
• One of 14 Pokémon that are both Grass and Poison.
• One of 170 blue Pokémon.
• Number 44 of 151 Pokémon introduced in Generation 1 (Kanto).
• Part of an evolution family of 4 Pokémon.
• Can learn 48 different moves in Scarlet / Violet.
• Catch rate 120: about 15.7% per Poké Ball at full health.
• Appears in 11 distinct Pokédex entries.

Sources and fact-checking

• Stats, types, abilities, moves, evolutions, forms and Pokédex entries: PokéAPI open game data.
• Lore: written by pokee.si in our own words, researched from Bulbapedia: Gloom (Pokémon), Serebii: Gloom (Scarlet/Violet Pokédex).
• Pronunciation (GLOOM): it follows how the English anime, games or official videos say it.

Last checked: 19 October 2026. Every sentence of the lore was checked against Bulbapedia, Serebii and the game data.

Explore

Grass-type Pokémon · Poison-type Pokémon · Grass/Poison weaknesses and matchups · Kanto region guide · Chlorophyll ability · Stench ability · Compare Gloom · Full Pokédex · Type chart · All moves

Browse similar Pokémon

Gen 1 Grass-type Pokémon · Gen 1 Poison-type Pokémon · Gen 1 Pokémon list · Blue Pokémon list · Grass egg group · Pokémon that start with G · What does the Leaf Stone evolve? · What does the Sun Stone evolve?

← Oddish | Vileplume →