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Scientific Name:
Crocus speciosus
Pronunciation:
KROE-kuss spee-see-OH-sus
Common Name:
fall flowering crocus, Bieberstein's crocus
Family Name:
Iridaceae
Plant Type:
Flowering pot plant, Herbaceous perennial
Key ID Features:
Typical crocus but begins flowering in the fall before the leaves appear; styles orange, branched.

Habit:
Upright
Form:
Columnar
Texture:
Medium - fine
Mature Height:
0.1 - 0.2m
Mature Spread:
< 0.1m
Origin:
Central / west Asia
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Well-drained
Landscape Uses:
Alpine, Attract beneficial insects, Container planting, Indoor plant, Perennial border, Rock garden, Spring interest
Additional Info:
Google. Compare to Colchicum autumnale (autumn crocus) which has unbranched stigmas and larger anthers like other members of the Liliaceae.

Leaf Morphology:
Form:
Grass-like
Arrangement:
Basal
Texture/Venation:
Soft flexible, Parallel venation
Surfaces:
Glabrous
Colour in Summer:
Green, White midrib
Shapes:
Linear
Apices:
Acute
Bases:
Sheathing
Margins:
Entire

Inflorescence Type:
Flowers solitary
Flower Morphology:
Flowers perfect
Number Of Petals:
3
Corolla Shape:
Campanulate
Ovary Position:
Inferior
Colour (petals):
Showy, Blue, Violet (lilac with paler coloured throats and dark veins)
Flower Time at Peak:
Oct, Nov
Additional Info:
six tepals

Fruit Type:
Capsule
Fruit Colour:
Green, Brown
Fruiting Time:
Additional Info:
Fruit insignificant, Unlikely to see capsules

Bark or Stem Colour:
Organ Modifications:
Corms
Propagation:
Seed, Division - below ground parts
Maintenance:
Low
Pest Susceptibility:
Rodents (Pest resistant, Disease resistant, Drought tolerant)

Course(s):
  • not used (on campus)
Location(s):
  • (BCE)  Boulevard (Circular) Eastend
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