Sunflowers Theme ~ I really like the blue mixed in with the brights of the sunflowers. I think it would work well for your "classy country" concept and a pretty blue would be a reasonable color for your girls' dresses.
Sunflower wedding invitation Sunflower and burlap wedding invitation Sunflower barn invitation
Sunflower boutonniere with purple flowers. not overly sure if we would have this exact boutonniere but i just adore sunflowers (Fav flower). so sunflower boutonniere is something i am strongly liking T&F