I think the Summer Porch pattern by Quilt in a Day would be very pretty with maybe a green leafy pattern for the sashing.
http://www.quiltinaday.com/shoponlin...ns&i=2899&pg=4
Or, if you want a quick pattern, try Disappearing Nine Patch. Large print for the four corners of the nine patch and smaller print for the other squares.
http://www.popularpatchwork.com/news/article.asp?a=5294