Toxic Plant Inconnu - Inadequate information on toxicity found.
Image of Symphyotrichum cordifolium
Source: Sundaura Alford-Purvis

Plant Names

image of Plante à fleurs
Symphyotrichum cordifolium
Heart-leaved Aster
Aster à feuilles cordées

Synonyms

blue wood aster

Plant Characteristics

Couleur de floraison: Bleu Bloom Period: Sep - Oct
Hauteur max: 3,0 feet
Max Width: 2,0 feet (spreads by rhizome)
Light Condition:
Full shade Less than 2 or 3 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan: Vivace des plantes qui reviennent année après année
Gardener Experience:
beginner friendly Suitable for beginner gardeners
plant spread by rhizome Spreads by rhizome
plant germinate easy Facile à germer
plant self seeding Self-seeding
Landscape Uses:
rain garden Suitable for rain gardens
container suitable Suitable for container garden
school garden Suitable for school gardens
woodland garden Suitable for woodland gardens
boulevard garden tolerant Tolerates boulevard garden conditions
Ecological Benefits:
butterfly host Butterfly host
keystones species Keystone species
Tolerates:
Limestone Tolerant Tolerates limestone conditions
Sand Tolerant Tolerates sandy conditions
Juglone Tolerant Tolerates juglone conditions
Transplantation Tolerant Tolerates transplantation
Special Features and Considerations:
causes skin rashes This plant causes skin rashes

Seed and plant distribution status

No seeds available for this plant.
Nous acceptions les semences de cette plante

Faits intéressants

Heart-leaved Aster has heart-shaped leaves and masses of small blue to lavender flowers in late summer and fall. It grows naturally in open forests, woodland edges, and partially shaded slopes. It prefers well-drained soil. Its airy flower clusters make it particularly useful for filling spaces between larger woodland plants.

Plant Location

Native to Ottawa region: Oui

Distribution according to VASCAN

Distribution: Symphyotrichum cordifolium
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent

Thrives in Ecozones

  • Maritime de l'Atlantique
  • Bouclier boréal
  • Plaines à forêts mixtes

Ecological Benefits

Butterflies Supported by Symphyotrichum cordifolium

Specialized Bees Supported by Symphyotrichum cordifolium

  • Andrena aliciae
  • Andrena asteris
  • Andrena canadensis
  • Andrena chromotricha
  • Andrena hirticincta
  • Andrena nubecula
  • Andrena placata
  • Andrena simplex
  • Complexe Colletes americanus
  • Complexe Colletes compactus
  • Complexe Colletes simulans
  • Dianthidium simile
  • Melissodes agilis
  • Melissodes druriellus
  • Melissodes illatus
  • Melissodes subillatus
  • Melissodes trinodis
  • Protandrena andrenoides
  • Pseudopanurgus aestivalis

Complementary Plants

Substitute For Non-Native Plants

  • Chrysanthemum (Mums)
  • Rosa (Non-native Roses)
  • Helianthus (Non-Native Sunflower)
  • NA (Black Eyed Susan's Cultivars)
  • Rudbeckia Triloba (Brown Eyed Susan's)
  • Echinacea (Coneflowers)
  • NA (Coreopsis cultivars)
  • NA (Non-native False Sunflower)
  • Symphiotrichum (Non-Native Aster)
  • Melilotus albus (Sweet White Clover)
  • Hesperis matronalis (Dame Rocket)

Sowing Information

Download Seed Envelope Labels (PDF)
  • Sowing depth: Surface sow
  • Sow by February
  • Stratification duration: 60 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: October
  • Harvesting indicator:
    • Seeds have become fluffy and can be easily removed by shaking on gently pulling off from stem
  • Harvesting:
    • Secouer le porte-graines dans un sac de papier
  • Seed viability test:
    • Pas de test requis avant le don
  • Packaging measure: 1 rounded 1/4 teaspoon
  • Seed storage:
    • Sécher à l'air dans un sac en papier ou contenant ouvert, pour quelques jours jusqu'à sec
    • Secouer de temps à autre pour prévenir la moisissure
  • Cultivar: No, you can donate without knowing the source as there are only straight species
  • Harvesting video: Watch here

Toxicity Notes

Inadequate information on toxicity found.