October Skies Aromatic Aster |Spotswood Greenery

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October Skies Aromatic Aster

Symphyotrichum oblongifolium 'October Skies'

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Pairs well with

October Skies stays low and dense, 1 to 2 feet tall while spreading 2 to 4 feet across, which puts an aromatic aster at the front of a border or along a walk where the taller selections would lean into the path. This selection of the native Symphyotrichum oblongifolium grows in full sun to part sun, hardy from Zone 5 through Zone 8.

Lavender-blue daisies with yellow centers cover the mound in mid to late fall, and the bloom often runs until frost. Asters are a keystone genus, and this species draws unusually large numbers of native bees, including specialists that feed on nothing else.

The gray-green foliage is fine-textured and aromatic, releasing a clean balsam scent when brushed, which keeps deer and rabbits off it.

Aromatic asters want lean, well-drained soil and full sun. Rich ground and regular water make them grow soft and open up at the center, so a dry spot suits this better than an irrigated bed. Give it room for the spread rather than crowding it. It handles drought, heat, poor soil, and moderate road salt once established.

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Size at Maturity

Height 1'- 2' Spread 2' - 3'

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Growing Zone

USDA Hardiness Zones 5-8

Lowest Temperatures -20°F to -10°F

Light Requirements

Full sun to part sun- at least 4 hours direct sun per day

Host Plant For

Pearl Crescent

Wildlife Benefits

  • Supports Bees
  • Attracts Butterflies

Native Range

AL, AR, CO, DC, DE, IA, IL, IN, KS, KY, MD, MN, MO, MS, MT, NC, ND, NE, NM, NY, OH, OK, PA, SD, TN, TX, VA, WI, WV, WY

Special Conditions

  • Deer Resistant
  • Drought Tolerant
  • Moderate Salt Tolerance

Fragrant

Seasons of Interest

  • Summer
  • Fall

Planting and Care Guide

Planting Tips

Plant in average to lean, well-drained soil. Space 18–24 inches apart. Water thoroughly after planting.

Care Tips

Water regularly after planting; once established it is quite drought tolerant. Pinch stem tips back in late spring to encourage a compact, well-branched plant. Cut to the ground in late fall or early spring. Divide every 3–4 years in spring. Watch for aster yellows. The aromatic foliage is pleasant when crushed and the sky-blue flowers in October are among the latest-blooming of any native aster, extending the garden season deep into fall. A refined, compact selection with excellent disease resistance. Outstanding for pollinators.

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