Blue Autumn Aster

Blue Autumn Aster

Symphyotrichum laeve Blue Autumn ('Oudshoom 1')

This mounding perennial bears purple flowers in fall.

  • Purple flowers are produced in fall, providing colour through the bloom season.
  • Mounding clump, reaching 60 cm at maturity; divide every three to four years to maintain vigour.
  • Best in full sun to partial shade to full shade with moist, average, dry, well-drained soil.
Size
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Plant Characteristics

Sunlight
Full sun, Partial shade, Shade
Soil Moisture
Well-drained, Moist, Dry, Average
Drought Tolerant
✓
Hardiness Zone
4 – 4
Mature Height (meters)
0.4 – 0.6
Mature Spread (meters)
0.4 – 0.6
Growth Rate
Medium
Flower Colour
Purple
Foliage Colour
Green
Bloom Time
Fall
Habit
Mounding
Rabbit Resistant
✓
Pollinator Friendly
✓
Attracts Birds
✓
Landscape Uses
Border, Mass planting, Accent
Growing & Maintenance Tips
Grows best in an average to moist soil, but tolerates a wide range of soil types. Best grown in full or partial sun and is drought resistant once established. Although not required, pruning foliage in early summer will promote more branching and result in a bushier habit. Excellent disease resistance.
Notes
The botanical name for Blue Autumn Aster has been updated from Aster laevis Blue Autumn ('Oudshoom 1') to Symphyotrichum laeve Blue Autumn ('Oudshoom 1').

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