‘Blue Danube’ is a Stokes Aster cultivar that features fluffy, cornflower-like, deep sky blue flowers (2-3” across) with white centers on generally erect, leafy stems growing to 12-18” tall from a rosette of oblong-lanceolate medium green leaves (to 8” long). Rosettes are evergreen in warm winter climates. Long summer to early fall bloom. Genus name honors Dr. Jonathan Stokes, 18-19th century English physician.
