Four Nerve Daisy is one of my favorite plants. It blooms from early March until the first frost in November. It's a happy little thing and spreads easily. I haven't figured out how to propagate it from seed yet, but I'm testing rooting cuttings. It produces a plethora of blooms that open in the light of day and close at day's end.
This is what I started with in 2006. The Four Nerve Daisy is the clump of green at the top of this pic.
Here's what it looks like now, 2 years later.
It looks great in the landscape, especially with purples.