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Scientific Name:
Aster spp. ( syn. Symphyotrichum - most )
Pronunciation:
ASS-tur (sim-fy-oh-TRY-kum)
Common Name:
common aster
Family Name:
Asteraceae
Plant Type:
Herbaceous perennial
Key ID Features:
Clump-forming, multi-branched perennial; leaves long, most lanceolate, 4-12cm long x 1-2cm wide, margins entire to serrate, sessile; flowers are white to purple and daisy-like in appearance, bloom late summer to mid autumn.

Habit:
Spreading
Form:
Mounded
Texture:
Fine
Mature Height:
0.7 - 1.3m
Mature Spread:
0.6 - 1.0m
Growth Rate:
Fast
Origin:
Canada - northern, U.S. - northeast
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun
Soil/Growing Medium:
Well-drained
Water Use:
Moderate
Landscape Uses:
Attract beneficial insects, Fall interest, Perennial border
Additional Info:
Google. Cultivars shown or on campus may include S. 'Magic'.

Leaf Morphology:
Form:
Simple
Arrangement:
Alternate, Sessile
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Pubescent
Colour in Fall:
Yellow, Dark-red
Shapes:
Elliptic, Lanceolate, Oblanceolate, Ovate
Apices:
Acute
Bases:
Decurrent
Margins:
Entire, Serrulate

Inflorescence Type:
Head (capitulum), Floriferous, Corymb-like
Flower Morphology:
Flowers perfect
Corolla Shape:
Ligulate
Ovary Position:
Inferior
Colour (petals):
Showy, White, Blue, Violet, Purple, Pink
Flower Scent:
None
Flower Time at Peak:
Aug, Sep, Oct

Fruit Type:
Achene
Fruit Colour:
Brown
Fruiting Time:
Sep, Oct
Additional Info:
Not showy

Bark or Stem Colour:
Red
Organ Modifications:
Rhizomes
Propagation:
Seed, Division - below ground parts
Pest Susceptibility:
Fungal leaf spot, Mites, Mold, Nematodes, Rust, Slugs or snails (Rabbit resistant)

Course(s):
  • Level 4 Apprenticeship
Location(s):
  • (AGB)  Acer Griseum Bed : confirm ID
  • (BHE)  Boulevard by Hwy. 10 Eastend : confirm ID
  • (BUG)  BUG garden : cv. Magic
  • (GAZ)  GAZebo
  • (GAZN)  GAZebo North
Location Map