The correct name now is Symphyotrichum oblongifolium Asteraceae: Aromatic Aster (AS-ter: ob-LON-ji-foe-lee-us)
Aster oblongifolius is another very attractive North American species that blooms late summer and fall. Large showy flowers on plants that grow 2 to 3 feet tall. The flowers have small bright yellow centers and soft purplish to pinkish mauve colored rays. This species is tolerant of poor dry soils and around here grows in open woods too. Good cut flowers with scented foliage, good for attracting any late season butterflies too.
Native to central USA into Canada and Mexico.
To germinate the seeds of Aster oblongifolius start with 3 or 4 weeks at 65-78F, if no results move to 32-39F for 45 days. Also a good subject for winter sowing.