In botanical nomenclature, it is now (sometimes) referred to as Symphyotrichum oblongifolium.
An excellent, compact aster that displays a mass of light blue during the cool days of fall. Hundreds of daisy-like flowers will keep the bees busy a little while longer at the end of the season. Plant with Prairie Dropseed and Goldenrod as companions.
Seed is fairly easy to germinate, though it does lose some viability after a year or two. Stratification is not necessary.
Uses: butterflies, pollinators, drought-resistant, bees
Bloom time: October & November
Height: 1 to 3 feet
Space: 1.5 to 2.5 feet
Sun: Full sun to light shade