It blooms during times of strong sunlight. It tries to make up for everything it endured as a bud.
It is docile as a bud, but turns cheerful when it blooms. It folds back into a bud if sunlight wanes.
If it senses strong sunlight, it opens its folded petals to absorb the sun’s rays with its whole body.
During times of strong sunlight, its bud blooms, its petals open fully, and it becomes very active.
As a bud, it barely moves. It sits still, placidly waiting for sunlight to appear.
— Pokédex entries (via PokeAPI)