Flowers are a sign of love from God, I think, a bit of "extra" He put into the world so we'd know He cares. I can't think of any other reason they're here than to grace our senses and reflect the beauty and generosity of God.
Flowers show me that God is extravagant.
I used to work in a florist shop, and the variety of shapes, colors, sizes and smells embodied in flowers seems endless. I loved being immersed in the headiness of it all on flower delivery day, when riots of color and fragrance graced buckets all over the store. Even now, the stunning beauty of a graceful arrangement can stop me in my tracks.
"The Earth laughs in flowers."
I've seen this phrase attributed to both e. e. cummings and Ralph Waldo Emerson. Either way, whoever said it, I couldn't agree more.
Thank you, God.