A seedling of the species,
this cultivar was registered jointly by
Dr. Ralph (Herb) Benedict and
Wilkins, all of Michigan in 1996. It forms a medium size (15 inches high) mound of very wavy,
smooth textured foliage. Pale purple flowers open from mid-August into September.
The Hostapedia by Mark Zilis (2009), "The
waviness and rich blue foliage color give 'Rhapsody
in Blue' its distinctive appearance."
Seedlings of this cultivar include H. 'Good Vibrations', H. 'Happily
Ever After' and H. 'Once upon a Time'.