I love the idea of sunflowers.
I'm having yellow roses....in fact my whole theme/colour scheme was altered from the original one I had "dreamed" over as a little girl and growing up, purely to be based around these yellow roses (following a personal loss of my horse).
So now my colour scheme is Navy/yellow/metallics (gold)
I didn't know the jealousy thing either...although a lot of people were very jealous of my girl who was a prolific winner when we were younger so maybe that's why she liked them!!!