description Sky Blue Aster Overview
Sky blue aster, Symphyotrichum oolentangiense, is a perennial wildflower native to central and eastern North America. It produces branching clusters of flower heads with pale blue to violet ray florets surrounding yellow disk florets, usually in late summer and autumn. The species grows in prairies, savannas, open woods, and other relatively dry, sunny habitats.
insights Ranking position
Sky Blue Aster ranks #110 of 341 in the Wildflower ranking, behind Swamp Rose, ahead of Purple Coneflower.
help Sky Blue Aster FAQ
What is the scientific name for Sky Blue Aster?
The scientific name for Sky Blue Aster is Symphyotrichum oolentangiense, though it was formerly classified under the genus Aster. The specific epithet 'oolentangiense' refers to the Olentangy River in Ohio, where early botanical specimens of the plant were collected.
When does the Sky Blue Aster bloom?
This wildflower typically blooms in late summer and autumn, usually peaking from August through October. Its late-season blooming makes it an essential nectar source for butterflies and native bees preparing for winter.
What are the ideal growing conditions for Sky Blue Aster?
Sky Blue Aster thrives in full sun to light shade and prefers dry to medium, well-draining soils. It is highly drought-tolerant and readily adaptable to poor, rocky soils, making it a resilient choice for native prairie restoration and wildflower gardens.
What do the flowers of the Sky Blue Aster look like?
The plant produces branching clusters of flower heads featuring pale blue to violet ray florets surrounding bright yellow center disk florets. These daisy-like flowers sit atop slender, slightly hairy stems that can grow up to two or three feet tall.
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