Sunflower, mostly for the quote about them in the movie, 'Calendar Girls'.
"I don't think there's anything on this planet that more trumpets life than the sunflower. For me that's because of the reason behind its name. Not because it looks like the sun but because it follows the sun. During the course of the day, the head tracks the journey of the sun across the sky. A satellite dish for sunshine. Wherever light is, no matter how weak, these flowers will find it. And that's such an admirable thing. And such a lesson in life."
Fairly sure none of the others were mentioned in that film.