bloom

noun

1
a powdery deposit on a surface
2
reproductive organ of angiosperm plants especially one having showy or colorful parts
3
the organic process of bearing flowers
you will stop all bloom if you let the flowers go to seed
4
a rosy color (especially in the cheeks) taken as a sign of good health
5
the best time of youth
6
the period of greatest prosperity or productivity

Also useful for “bloom”:Wordle Solver— Five letters — perfect Wordle material