Plants we love, hate, or just have something to say about.
And right then, before I can forget, I find my calendar app, scroll to some random date in August, and type, "Order more daffs."
Therefore, I call all of them by the one common name I know--Pasque flower.
But the industry has been around a long, long time. Uninterrupted really. Impulse buys and discretionary spending, I suppose, but people seem to really want and need beautiful plants in their lives.