Plant Names
Symphyotrichum laeve
Smooth Aster
Aster lisse
Synonyms
glaucous aster
smooth blue aster
Plant Characteristics
Couleur de floraison: Bleu
Bloom Period: Sep - Oct
Hauteur max: 4,0 feet
Max Width: 2,0 feet (spreads by rhizome)
Light Condition:
Plus de 6 heures d'ensoleillement par jour
More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Tolerates medium soil condition
Lifespan:
Vivace
des plantes qui reviennent année après année
Gardener Experience:
Suitable for beginner gardeners
Ne se propage pas de manière incontrôlable
Spreads by rhizome
Facile à germer
Self-seeding
Landscape Uses:
Suitable for rock gardens
Suitable for rain gardens
Suitable for container garden
Suitable for school gardens
Tolerates boulevard garden conditions
Ecological Benefits:
Supports pollinators
Butterfly host
Bee host
Keystone species
Tolerates:
Tolerates salt conditions
Tolerates limestone conditions
Tolerates acidic soil conditions
Tolerates juglone conditions
Tolerates transplantation
Special Features and Considerations:
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
Smooth Aster is an attractive, upright perennial with smooth bluish-green stems and foliage and lavender-blue flowers with yellow centres. It blooms in late summer and fall and grows naturally in prairies, open woodlands, and dry meadows. It prefers well-drained soil and is particularly useful in sunny native borders. It is drought tolerant once established. It may need support in rich soil where stems become tall. You can divide in spring if clumps become crowded.
Plant Location
Distribution according to VASCAN
Ephemeral
Native
Introduced
Excluded
Extirpated
Doubtful
Absent
Thrives in Ecozones
- Plaines boréales
- Cordillière montagnarde
- Prairies
- Taïga de la Cordillière
- Bouclier boréal
- Cordillière boréale
- Plaines à forêts mixtes
Ecological Benefits
Butterflies Supported by Symphyotrichum laeve
-
Cucullia convexipennis
Brown Hooded Owlet - Noctuelle Huppée de la Verge d'Or -
Eupithecia miserulata
American Common Pug -
Euplexia benesimilis
American Angle Shades -
Leuconycta diphteroides
Green Leuconycta -
Phyciodes cocyta
Northern Crescent - Croissant Nordique -
Phyciodes tharos
Pearl Crescent - Croissant Perlé -
Trichordestra legitima
Striped Garden Caterpillar
Specialized Bees Supported by Symphyotrichum laeve
- 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
- Coreopsis tripteris
Tall Tickseed
Coréopsis trifoliolé - Panicum virgatum
Switch Grass
Panic raide - Solidago altissima
Tall Goldenrod
Verge d’or haute - Solidago squarrosa
Squarrose Goldenrod
Verge d’or squarreuse - Symphyotrichum lanceolatum
White Panicled Aster
Aster lancéolé
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 anytime
- Stratification duration: 0 days
- Self-seeding
- Notes: Can be sown in late spring in warm soil.
Harvesting and Seed Sharing
- Harvest start month: September
- 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: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity
- No harvesting video available at this time.
Toxicity Notes
Inadequate information on toxicity found.
Canadensis