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Aster oolentangiensis

Sky Blue Aster (Azure Aster)

An easy to grow, rhizomatous perennial attracting beneficial insects to the garden.

  • »  AKA Aster azureus or Symphyotrichum oolentangiense
  • »  Flowers are made up of petals in varying shades of blue surrounding a yellow eye
  • »  Naturally found in Southern Ontario in dry meadows, edges and open woods
  • »  Bloom Time: Summer to fall
  • »  Flower Size: 2.5 cm

Plug50
$8.75
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1 Litre
$18.38
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1gal
$21.88
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  • Category:Perennials
  • Hardiness Zone:3
  • Height:60-80 cm
  • Spread:30-60 cm
  • Bloom Color: Blue
Exposure
• Full Sun
• Partial Sun/Shade
Soil Moisture
• Moist to Average
• Average to Dry Soils
• Well-drained
Attracts Wildlife
• Attracts Butterflies
Growth Rate
• Medium
Critter
• Deer Resistant
Attributes
• Native to Ontario
• Salt Tolerant
Flowering Time
• Lt. Sum-Fall
• Fall
Habit
• Clumping
• Upright
Foliage Color
• Green
Landscape uses
• Naturalizing
• Roadside planting
• Woodland/woods edge
Planting instructions
• Container Plants
Additional Information about Aster oolentangiensis

Native to Ontario

Growing & Maintenance Tips for Aster oolentangiensis

Plant in average, dry to moist, well-drained soil in full sun. Plant height can vary depending on how rich the soil is and how much moisture is provided. Pinch back 1/3 of the foliage twice before early summer, to maintain shape and foliage vigour.