The Pokémon Go grass event takes place over the first weekend of May, and increases the encounter rates of certain creatures.
Similar to the recent Water Festival, trainers will encounter increases numbers of grass Pokémon, with elusive starters Bulbasaur and Chikorita cited, as well as an increase in Lure potency.
When does the Pokémon Go grass event end?
The Pokémon Go grass event began on Friday, May 5 and officially ended Monday, May 8, but as of Tuesday May 9, the event is ongoing. Though developer Niantic hasn't specified times, there is a chance it'll end around the same time as the recent Water Festival - 1am PST (or 8:00pm UK time), but the fact it's overrunning already means it could go beyond then.
Bulbasaur, Chikorita and other grass Pokémon likely to appear in the event
According to Niantic, we can expect to see more "grass-type Pokémon" to appear in the wild throughout the event. It has confirmed only two via official imagery - starters Bulbasaur and Chikorita - we can suspect much more to appear.
Confirmed grass event Pokémon:
- Bulbasaur (and evolutions suspected)
- Chikorita (and evolutions suspected)
All Gen 1 and Gen 2 grass Pokémon we also may see more of:
- Oddish and evolutions Gloom, Vileplume (all Grass / Poison types)
- Paras and evolution Parasect (both Bug / Grass types)
- Bellsprout and evolutions Weepinbell and Victreebel (all Grass / Poison types)
- Exeggcute and evolution Exeggutor (both Grass / Psychic types)
- Hoppip and evolutions Skiploom and Jumpluff (all Grass / Flying types)
With starters Bulbasaur and Chikorita and their evolutions, as well as Tangela, being some of the more rare Pokémon in the game, make sure you find as many as you can before the event has concluded.
Other events such as Halloween, Christmas and the Water Festival increased appearance rates of seasonal creatures everywhere, not just their natural biomes, and it's likely to the same here, meaning you'll see increased grass creatures outside of fields and parks.
This means rare creatures should appear outside of their usual spawn locations, and so we should be able to find a Tangela before too long, compared to Chansey during the recent Valentine's Day event, which only increased its chances of appearing in its usual spots, going from being incredibly elusive to super rare.
As well as these rarer creatures, the event is also a great chance to get Candy for some of the more uncommon creatures if you haven't evolved and added them to your Pokedex already.
Want more help with Pokémon Go? As well as our Pokémon Go tips, tricks and guides page, you can look up the Gen 2 Pokédex on how to catch the most recent creatures, using Special Items such as the Dragon Scale and other methods. The update also introduced changes to Eevee evolutions, Egg hatching distances, best Pokémon, moves and Buddy distances. Elsewhere, you can read about how Gyms, promo codes and the Pokémon Go Plus accessory works, and the many ways of earning experience with our XP chart.
What else you need to know about the Pokémon Go Grass event
Alongside the Grass Festival, Pokémon Go has increased the duration of Lure modules for up to six hours.
While it said the "entire weekend", we suspect it'll be for the same duration as the event, ending sometime on Monday, May 8.
To help you catch your favorite Grass-type PokĂ©mon this weekend, Lure Modules will last for six hours for the entire weekend! pic.twitter.com/LHPbVmZpLV— PokĂ©mon GO (@PokemonGoApp) May 4, 2017
Otherwise, there are seemingly no other updates to be seen. The most recent event of this type, the Water Festival, stealth introduced the concept of Shinies, including a Shiny Magikarp and Red Gyarados. It's unknown whether another such update will be introduced (or even more Shinies) but it doesn't hurt to keep your eyes peeled for anything suspect.