A Bellossom grows flowers more beautifully if it has evolved from a smelly Gloom—the more stinky the better. At night, this Pokémon closes its petals and goes to sleep. When the heavy rainfall season ends, it is drawn out by warm sunlight to dance in the open. Bellossom gather at times and seem to dance. They say that the dance is a ritual to summon the sun.
Pokédex entry #182
Bellossom is a type grass Pokémon .
Bellossom in Pokémon GO
It's possible to hatch Bellossom from an egg?
No, Bellossom can't be hatched.
Which are Bellossom’s strengths and weaknesses?
Bellossom is a grass type Pokémon. grass type pokémons are strong against water, ground, rock pokémons but weak against fire, grass, poison, flying, bug, dragon pokémons.