Roselia, the Thorn Pokémon from Hoenn, is found in the wild Pokémon Go. Yes, Roselia can shine Pokémon Go!
Roserade is actually a really good Grass and Poison-type attacker, so it's worth grabbing a strong one if you can. If you already have a Shiny Roselia (or one of its family members), it likely came from a previous Roselia Community Day event that took place in February 2021.
What is the shiny rate for Roselia in Pokémon Go?
According to old research from the now-defunct website The Silph Road (via Wayback machine), the shiny rate for Pokémon on a normal day is approximately one in 500. Roselia is not a confirmed Pokémon that receives a “permaboost” (meaning that it is a rare spawn and therefore receives an increased shiny rate).
What can I do to attract more shiny Pokémon?
Unfortunately not much. It seems to be a coincidence. Catch rates for Shiny Pokémon are set by developer Niantic and are typically only increased during special events such as Community Days or Safari Zones, or during Legendary Raids. There are no consumable items that increase the rate of Shiny Pokémon.
