---
title: "Grass/Poison Weakness: Resistances, Immunities & Pokémon | pokee.si"
url: "https://pokee.si/types/grass-poison"
description: "Grass/Poison Pokémon are weak to Fire, Ice, Flying and Psychic, which hit them for 2× damage. On pokee.si."
last_updated: "2026-10-20"
publisher: "pokee.si: a Pokédex for families (unofficial fan site)"
---

Dual type

# Grass/Poison weakness

**Grass/Poison Pokémon are weak to Fire, Ice, Flying and Psychic, which hit them for 2× damage.** They resist 5 types and take normal damage from 9 types.

## Grass/Poison damage taken

| Damage | Attacking types |
| --- | --- |
| 2× | [Fire](https://pokee.si/types/fire), [Ice](https://pokee.si/types/ice), [Flying](https://pokee.si/types/flying), [Psychic](https://pokee.si/types/psychic) |
| 1× | [Normal](https://pokee.si/types/normal), [Poison](https://pokee.si/types/poison), [Ground](https://pokee.si/types/ground), [Bug](https://pokee.si/types/bug), [Rock](https://pokee.si/types/rock), [Ghost](https://pokee.si/types/ghost), [Dragon](https://pokee.si/types/dragon), [Dark](https://pokee.si/types/dark), [Steel](https://pokee.si/types/steel) |
| ½× | [Water](https://pokee.si/types/water), [Electric](https://pokee.si/types/electric), [Fighting](https://pokee.si/types/fighting), [Fairy](https://pokee.si/types/fairy) |
| ¼× | [Grass](https://pokee.si/types/grass) |

## Best types to use against Grass/Poison

To beat a Grass/Poison Pokémon, use Fire, Ice, Flying and Psychic moves: they deal 2× damage. Do not waste turns on Grass (¼×), Water (½×), Electric (½×), Fighting (½×) and Fairy (½×).

Grass/Poison and Poison/Grass are the same typing: in battle the order of a Pokémon's two types makes no difference, so a Poison/Grass search lands on this page too.

Going the other way, Grass and Poison moves between them hit Water, Grass, Ground, Rock and Fairy super effectively, but Poison and Steel take reduced or no damage from both.

17 Pokémon have the Grass/Poison typing: 14 species and 3 alternate forms, first appearing in Generation 1 and spanning 4 generations to Generation 5.

The highest base stat total is Mega Venusaur with 625; the average across the group is 431.

## Abilities that change Grass/Poison matchups

Some Grass/Poison Pokémon have an ability that overrides the type chart. These are the ones that do:

- [Thick Fat](https://pokee.si/abilities/thick-fat) halves damage from Fire and Ice moves (Fire 2× to 1×; Ice 2× to 1×). Held by [Mega Venusaur](https://pokee.si/pokemon/venusaur?form=venusaur-mega).

## 17 Grass/Poison Pokémon

- [Bulbasaur](https://pokee.si/pokemon/bulbasaur)
- [Ivysaur](https://pokee.si/pokemon/ivysaur)
- [Venusaur](https://pokee.si/pokemon/venusaur)
- [Mega Venusaur](https://pokee.si/pokemon/venusaur?form=venusaur-mega) (form)
- [Gigantamax Venusaur](https://pokee.si/pokemon/venusaur?form=venusaur-gmax) (form)
- [Oddish](https://pokee.si/pokemon/oddish)
- [Gloom](https://pokee.si/pokemon/gloom)
- [Vileplume](https://pokee.si/pokemon/vileplume)
- [Bellsprout](https://pokee.si/pokemon/bellsprout)
- [Weepinbell](https://pokee.si/pokemon/weepinbell)
- [Victreebel](https://pokee.si/pokemon/victreebel)
- [Mega Victreebel](https://pokee.si/pokemon/victreebel?form=victreebel-mega) (form)
- [Roselia](https://pokee.si/pokemon/roselia)
- [Budew](https://pokee.si/pokemon/budew)
- [Roserade](https://pokee.si/pokemon/roserade)
- [Foongus](https://pokee.si/pokemon/foongus)
- [Amoonguss](https://pokee.si/pokemon/amoonguss)

## Quick answers

### What is Grass/Poison weak to?

Grass/Poison Pokémon are weak to Fire, Ice, Flying and Psychic, which hit them for 2× damage.

### What is Grass/Poison immune to?

Grass/Poison Pokémon have no type immunities.

### What resists Grass/Poison?

Grass/Poison Pokémon resist Water (½×), Electric (½×), Fighting (½×), Fairy (½×) and Grass (¼×).

### What is the best type against Grass/Poison?

To beat a Grass/Poison Pokémon, use Fire, Ice, Flying and Psychic moves: they deal 2× damage. Do not waste turns on Grass (¼×), Water (½×), Electric (½×), Fighting (½×) and Fairy (½×).

## Related type pages

Single types: [Grass](https://pokee.si/types/grass), [Poison](https://pokee.si/types/poison). [All dual-type combinations](https://pokee.si/types/dual). [Type chart and calculator](https://pokee.si/types).

### More Grass combinations

- [Normal/Grass](https://pokee.si/types/normal-grass)
- [Fire/Grass](https://pokee.si/types/fire-grass)
- [Water/Grass](https://pokee.si/types/water-grass)
- [Electric/Grass](https://pokee.si/types/electric-grass)
- [Grass/Ice](https://pokee.si/types/grass-ice)
- [Grass/Fighting](https://pokee.si/types/grass-fighting)
- [Grass/Ground](https://pokee.si/types/grass-ground)
- [Grass/Flying](https://pokee.si/types/grass-flying)
- [Grass/Psychic](https://pokee.si/types/grass-psychic)
- [Grass/Bug](https://pokee.si/types/grass-bug)
- [Grass/Rock](https://pokee.si/types/grass-rock)
- [Grass/Ghost](https://pokee.si/types/grass-ghost)
- [Grass/Dragon](https://pokee.si/types/grass-dragon)
- [Grass/Dark](https://pokee.si/types/grass-dark)
- [Grass/Steel](https://pokee.si/types/grass-steel)
- [Grass/Fairy](https://pokee.si/types/grass-fairy)

### More Poison combinations

- [Normal/Poison](https://pokee.si/types/normal-poison)
- [Fire/Poison](https://pokee.si/types/fire-poison)
- [Water/Poison](https://pokee.si/types/water-poison)
- [Electric/Poison](https://pokee.si/types/electric-poison)
- [Fighting/Poison](https://pokee.si/types/fighting-poison)
- [Poison/Ground](https://pokee.si/types/poison-ground)
- [Poison/Flying](https://pokee.si/types/poison-flying)
- [Poison/Psychic](https://pokee.si/types/poison-psychic)
- [Poison/Bug](https://pokee.si/types/poison-bug)
- [Poison/Rock](https://pokee.si/types/poison-rock)
- [Poison/Ghost](https://pokee.si/types/poison-ghost)
- [Poison/Dragon](https://pokee.si/types/poison-dragon)
- [Poison/Dark](https://pokee.si/types/poison-dark)
- [Poison/Steel](https://pokee.si/types/poison-steel)
- [Poison/Fairy](https://pokee.si/types/poison-fairy)

---

Source: https://pokee.si/types/grass-poison (HTML page). pokee.si is an unofficial fan site and is not affiliated with Nintendo, Creatures, GAME FREAK or The Pokémon Company. Pokémon and all related names and images are © their respective owners.
