A seedling of the species,
this cultivar was registered jointly by
Dr. Ralph (Herb) Benedict of Michigan and
Wilkins 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
(2009) comments, "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'.