Heart-leaved Aster, Blue Wood Aster

Heart-leaved Aster, Blue Wood Aster

Symphyotrichum cordifolium

This mounding perennial bears blue flowers in fall.

  • Blue 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 partial shade to full shade with average, dry soil.
Size
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Plant Characteristics

Sunlight
Partial shade, Shade
Soil Moisture
Dry, Average
Drought Tolerant
Hardiness Zone
3 – 3
Mature Height (meters)
0.5 – 0.6
Mature Spread (meters)
0.6 – 0.8
Growth Rate
Medium
Flower Colour
Blue
Foliage Colour
Green
Bloom Time
Fall
Habit
Mounding
Deer Resistant
Pollinator Friendly
Attracts Birds
Ontario Native
Growing & Maintenance Tips
Grows best in light shade or partial sun, moist to slightly dry conditions, similar to areas found in deciduous woodlands. The size of this plant varies in the natural landscape, depending on the fertility of the soil and moisture conditions. Susceptible to powdery mildew.
Notes
Native to Ontario The botanical name for Heart-leaved Aster, Blue Wood Aster has been updated from Aster cordifolius to Symphyotrichum cordifolium.

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