Pattern is in a book called Tradition with a Twist.
http://www.amazon.com/gp/aw/d/157120...1311718&sr=8-1
I can't imagine doing this without a design wall. You will definitely want to "test" the fabrics. I swapped out at least two that didn't work. The celery is growing on me for the reasons others have stated. go to images.google.com and search for "blooming nine patch" for other ideas.