I like the colors as they are- don't see with pinwheels that you would need another green color. If you feel you need to add it, would only introduce it as a 1-1.5" boarder sandwiched between two wider boarders- Used as a boarder it would pull out the darker green of the leaves but I dont think I would feel it was necessary. BTY love the fabrics might have to go check out my local store.