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Smooth Aster

Scientific name

Symphyotrichum laeve


The Smooth Aster is a perennial wildflower species that typically grows about 1 m in height. The stems are tough and have multiple erect branches. The leaves are alternately arranged, smooth, waxy, and have entire margins. The flowers are lavender blue coloured, have yellow centers, appear on flowering stems, and bloom from August to October. The flowers are attractive to pollinator species like bees, hummingbirds, and butterflies.

Planting conditions

Smooth Aster grows best in moist to dry conditions with full sun exposure. It prefers sandy or loamy soil type and a neutral pH level. It is tolerant of frost and cold. It is tolerant of drought and dry soil but young plants should be watered occasionally until established. This wildflower naturally occurs in open forests, fields, meadows, prairies, and road ditches.


  • Plant height:
    • Max 1.5m
    • Max 2m
    • Max 3m
    • Any
  • Moisture level:
    • Dry
    • Normal
    • Moist
    • Drought Tolerant
  • Light conditions:
    • Full sun
  • Soil type:
    • Sandy
    • Loamy
    • Rocky
  • pH:
    • Normal
  • Depth:
    • Wildflower
  • Eco Zone:
    • 3b
    • 4a
    • 4b
    • 5a
    • 5b
    • 6a
    • 6b
    • 7a
  • Plant type:
    • Wildflower
  • Height:
    • 1 m
  • Spread:
    • 0.5 m