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Scientific Name:
Aconitum carmichaelii
Pronunciation:
ack-uh-NYE-tum KAR-mike-ul-ee-eye
Common Name:
autumn monkshood
Family Name:
Ranunculaceae
Plant Type:
Herbaceous perennial
Key ID Features:
Stems sturdy and stay upright; leaves with 3 or 5 main lobes, alternate, ovate-orbicular, most blades 7-14cm long x 9-15cm wide; margin toothed and incised; racemes 6-20cm long, florets 'hooded' (modified sepal), blue-violet, Sep-Oct; follicles 15-18mm long.

Habit:
Stiffly upright
Form:
Oval - vertical
Texture:
Medium - coarse
Mature Height:
0.7 - 1.3m
Mature Spread:
0.1 - 0.3m
Growth Rate:
Fast
Origin:
S.E. Asia / Japan / China
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Part sun/part shade, Filtered shade
Soil/Growing Medium:
Well-drained
Water Use:
Moderate
Landscape Uses:
Cut flower or foliage, Fall interest, Group or mass planting, Mixed shrub border, Perennial border, Woodland margin (Caution: poisonous parts)
Additional Info:
Google. Cultivars shown may include A. 'Arendsii'.

Leaf Morphology:
Form:
Simple, Dissected
Arrangement:
Alternate
Texture/Venation:
Leathery, Palmate venation
Surfaces:
Pubescent
Colour in Summer:
Dark-green
Colour in Fall:
Green, Yellow
Shapes:
Orbicular, Ovate
Apices:
Acute
Bases:
Cordate
Margins:
Dentate, Pinnately lobed

Inflorescence Type:
Raceme, Panicle-like
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Tubular
Ovary Position:
Superior
Colour (petals):
Showy, Blue, Violet
Flower Scent:
None
Flower Time at Peak:
Sep, Oct
Additional Info:
additional racemes arise later from axils below the terminal raceme

Fruit Type:
Aggregate fruit, Follicle
Fruit Colour:
Green, Brown
Fruiting Time:
Oct, Nov
Additional Info:
Showy, Persistent

Bark or Stem Colour:
Green, Red
Organ Modifications:
Tuberous roots
Propagation:
Seed, Division - below ground parts
Maintenance:
Low
Other:
Deadheading will prolong flowering
Pest Susceptibility:
Aphids or adelgids, Crown rot, Mildew, Wilt (Pest resistant, Deer resistant, Rabbit resistant)

Course(s):
  • HORT 2355
Location(s):
  • (BCW)  Boulevard (Circular) Westend : auditorium planting
  • (GAZ)  GAZebo
  • (GAZW)  GAZebo West
Location Map