Overgrow increases the power of Grass-type moves by 50% (1.5×) when the ability-bearer's HP falls below a third of its maximum (known in-game as in a pinch
).
| Generation III | Ups GRASS moves in a pinch. |
|---|---|
| Generation IV | Powers up Grass-type moves in a pinch. |
| Generation V | Powers up Grass-type moves in a pinch. |
# | Name | 2nd ability | Hidden ability |
|---|---|---|---|
| 001 | Bulbasaur | — | Chlorophyll |
| 002 | Ivysaur | — | Chlorophyll |
| 003 | Venusaur | — | Chlorophyll |
| 152 | Chikorita | — | Leaf Guard |
| 153 | Bayleef | — | Leaf Guard |
| 154 | Meganium | — | Leaf Guard |
| 252 | Treecko | — | Unburden |
| 253 | Grovyle | — | Unburden |
| 254 | Sceptile | — | Unburden |
| 387 | Turtwig | — | Shell Armor |
| 388 | Grotle | — | Shell Armor |
| 389 | Torterra | — | Shell Armor |
| 495 | Snivy | — | Contrary |
| 496 | Servine | — | Contrary |
| 497 | Serperior | — | Contrary |
# | Name | Other abilities |
|---|---|---|
| 511 | Pansage |
Gluttony |
| 512 | Simisage |
Gluttony |