Pokémon GO "Grass Weekend" event

[Pokemon Trainer]

The official website announced an "Grass-type Weekend" event.
From the afternoon of May 5 until May 8, 2017 a greater variety of Grass-type Pokémon will appear in the wild.

Professor Willow's research into Pokémon habitats around the world has uncovered some interesting findings. 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.

Starting on May 5, expect to see Grass-type Pokémon crop up more often as you explore your world with Pokémon GO. It's a great opportunity to catch Pokémon that you may not have encountered in your area! The increased numbers of Grass-type Pokémon will continue until May 8, when the Pokémon return to their usual habitats.