A special event is about to take place in Pokemon Go during which grass Pokemon will spawn at a higher frequency than usual.
Niantic announced on Thursday that beginning on Friday, May 5th, and lasting until Monday, May 8th, grass Pokemon in the game will have increased spawns.
“Professor Willow’s research into Pokémon habitats around the world has uncovered some interesting findings,” Niantic said on its website. “His initial reports indicate that we’ll see an influx of Grass-type Pokémon sometime this weekend. These Pokémon will appear in the wild more frequently starting the afternoon of May 5, but only for a short period of time. We anticipate that Pokémon will return to their normal habitats on May 8, 2017 PDT.”
In addition, Lure Modules during this event will last for six hours, which is longer than they usually do.
Depending on what sort of biome you live in, this event might be incredibly helpful, or you might not even notice it exists because these are the Pokemon that you encounter every day anyway.
Still, these are the Pokemon that are expected to have increased spawns during the Pokemon Go grass event: