I wrote a post last May about cosmos flowers that included a little background; I’ll repeat it here:
Sometimes called Mexican Asters, cosmos were grown by Spanish priests in their mission gardens in Mexico. The evenly placed petals led them to christen the flower “Cosmos,” the Greek word for harmony or ordered universe. Cosmos, like many of our warm weather annuals such as marigolds, originated in Mexico and South America.
These are currently flourishing on the patio. Click the image to enlarge.