Fall Aster (Symphyotrichum oblongifolium)

Fall Aster

Symphyotrichum oblongifolium

Other Common Names: Aromatic Aster

Other Botanical Names: Aster oblongifolius

Top Pick: A tough native perennial that explodes with purple blooms in fall and supports pollinators when few other plants are flowering.

Quick Plant Info

• ☀️ Light: Full Sun
• 💧 Water: Low
• 🌿 Type: Perennial
• 📏 Mature Size: 1–3 ft tall × 2–3 ft wide

Description

A compact native perennial with masses of purple flowers that create a striking fall display.

Fall Aster forms a rounded mound of foliage that becomes covered in bright purple blooms in fall. It provides reliable late-season color and thrives in hot, dry conditions.

🌼 Why it works

• Outstanding fall color display
• Excellent heat and drought tolerance
• Compact, mounded growth habit
• Very low maintenance

🐦 Wildlife value

A critical nectar source for butterflies and other pollinators in fall.

Helps sustain pollinators late in the season when fewer plants are blooming.

🌱 Where it thrives

Best in full sun with well-drained soil. It performs well in rocky or sandy soils and is ideal for xeriscape and pollinator plantings.

• Xeriscape and dry gardens
• Pollinator gardens
• Borders and naturalized plantings

Soil: Prefers well-drained soil and tolerates rocky or limestone conditions.

✂️ Growth & maintenance

Shear lightly in early summer to encourage a fuller shape and more compact bloom. Minimal maintenance required.

💧 Water (establishment note)

Water regularly during establishment; once established, Fall Aster is highly drought tolerant.

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