I love the Chiffon Series of Hibiscus. They are much more bushy - not has stiff and clubby as most Hibiscus syriacus. The long, fine stems are loaded with flowers and they flowers are large with a lacy center. Here is a link to a video that shows how nice this plant is for the garden.

http://www.facebook.com/video/video.php?v=1156864255925

Here is a link that might be useful: Chiffon Hibiscus Video