‘Thunderdome’ is a hybrid between New England Aster and Aromatic Aster, combining the deep-purple flowers of New England aster with the bushy habit and aromatic foliage of aromatic aster. It produces masses of daisy-like purple flowers late in the season.
Size: approximately 24–36 in. tall × 24–36 in. wide.
Bloom time: late summer through fall.
Flower color: Bright/deep purple with yellow centers.
Foliage: Aromatic green foliage.
Habit: Bushy, mounding.
Best features: Late-season flowers, pollinator value and strong native-aster genetics.
‘Thunderdome’ is new for 2026
‘Thunderdome’ is a hybrid between New England Aster and Aromatic Aster, combining the deep-purple flowers of New England aster with the bushy habit and aromatic foliage of aromatic aster. It produces masses of daisy-like purple flowers late in the season.
Size: approximately 24–36 in. tall × 24–36 in. wide.
Bloom time: late summer through fall.
Flower color: Bright/deep purple with yellow centers.
Foliage: Aromatic green foliage.
Habit: Bushy, mounding.
Best features: Late-season flowers, pollinator value and strong native-aster genetics.
‘Thunderdome’ is new for 2026
