Scientific Name:
Symphyotrichum novi-belgii
Pronunciation:
sim-fy-oh-TRY-kum NO-vee BELL-jee-eye
Common Name:
Michaelmas daisy, New York aster
Family Name:
Asteraceae
Plant Type:
Herbaceous perennial
Key ID Features:
Clump-forming, multi-branched perennial; leaves alternate, lanceolate-oblanceolate, 8-11(-15)cm long x 6-13mm wide, sessile; flower heads daisy-like, 2.5-3cm wide, ray florets 15-25, white-pink-violet-purple, disk florets yellow, Aug-Oct.
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, Attract butterflies, Fall interest, Perennial border
Additional Info:
Google. Cultivars shown or on campus may include S. 'Magic', S. 'Purple Viking', and S. 'Sapphire'. White flowered cultivar: S. 'Snow Cushion'. Compare to New England aster (1-2m tall; leaves lanceolate but more linear< 6-10cm long, pubsecent; heads 1.5-2cm wide, ray florets (40–)50–75(–100), purple, disc florets 50–100, yellow). Key to species.
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate, Spiraled
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Pubescent
Colour in Summer:
Green, Purple, Nearly Black
Colour in Fall:
Purple, Dark-red
Shapes:
Elliptic, Lanceolate, Oblanceolate
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):
- HORT 1155
Location(s):
- (AGB) Acer Griseum Bed
- (BHE) Boulevard by Hwy. 10 Eastend : confirm ID
- (BUG) BUG garden : cv. Magic
- (GAZ) GAZebo
- (GAZN) GAZebo North