Firefly is an understated icy yellow color which I just love on a recurved and ruffled flower. This plant is notable because it settled in right away, bloomed like a champ in its first year here, always opens well, and does not hesitate to set pods. In short, it's the whole package - a great plant under a pretty flower. I have set seeds on this plant every year since I have had it. The color is such that I expect it could be used successfully with just about any color, and may even produce some interesting results when crossed with near-whites.