Symphyotrichum hallii

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USDA Hardiness zone: Zn5b -10º to -15ºF

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Symphyotrichum hallii

Hall’s Aster might as well be known as Willamette Valley Aster as this charming smaller perennial is found primarily there. To 20″ tall and spreading to form a wider clump this native aster begins blooming in August and continues into Autumn. The small daisy flowers have rays that are primarily white, though light pink and lavender are also seen. The reverse of the petals is always a darker color- primarily very light lavender. Excellent native pollinator plant for late in the season. Full sun to very light shade in rich to average soil. Adaptable to xeric clay soils that dry in summer. In the garden deep infrequent soaks will yield the healthiest and most floriferous plants. Spreads moderately underground by stolons. Not bothered by deer. Nice little cut flower as filler for bolder arrangements. Climate adapted perennial that is a native for a Willamette Valley prairie. Not as vigorous and space consuming as Symphyotrichum subspicatum – Douglas aster. Hall’s aster fits in much smaller spaces. Easy to grow, winter deciduous. Associated plants in the wild are Sidalcea m. ‘Virgata’, Eriophyllum lanatum, Achillea millefolium.  Takes intense dry conditions with establishment. Oregon native plant.

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