Vibrant purple, star-shaped flowers with yellow center accents adorn lance-shaped green foliage through autumn. The compact, mounding habit of this sport of Aster 'Purple Dome' has proven mildew resistance. Reaching between 15 and 20 inches high by 20-30 inches wide, 'Vibrant Dome' performs best in fertile, well-drained soil in full sun. A beautiful performer for late season color.