Dogwhistle for "eat the rich".
The melting of Antarctic glaciers is resulting in flowers blooming on the continent. This is being contributed to by the rich class. The phrase basically means "our planet is dying".
Good morning, did you hear flowers are blooming in Antarctica?
Left-Wing phrase created to promote awareness for climate change
Person 1: Do you believe in climate change?
Person 2: Flowers are blooming in Antarctica bud.