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Scientific Name:
Origanum vulgare
Pronunciation:
uh-RIG-uh-num vul-GAIR-ee
Common Name:
oregano
Family Name:
Lamiaceae
Plant Type:
Herbaceous perennial
Key ID Features:
Tufted, highly scented plant; leaves opposite, ovate with dentate to ciliate margins, glandular hairs, to 1-2(-4)cm long, strongly scented; florets densely arranged in verticillasters, white to pink, up to 3mm wide.

Habit:
Dense, Spreading, Upright
Form:
Mounded, Oval - horizontal
Texture:
Fine
Mature Height:
0.2 - 0.4m
Mature Spread:
0.6 - 1.0m
Growth Rate:
Moderate
Origin:
Europe
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Rocky or gravelly or dry, Well-drained
Water Use:
Low, Summer dry
Landscape Uses:
Alpine, Attract butterflies, Bedding plant, Container planting, Cut flower or foliage, Dried flower or fruit, Filler, Fragrance, Ground cover, Group or mass planting, Hanging basket, Herb, Perennial border, Small garden/space
Additional Info:
Google. Cultivars and subspecies shown or on campus may include O. ‘Aureum' and O. ‘Aureum Crispum’ (golden oregano), and O. vulgare ssp. hirtum (Greek oregano). Note: some cultivars may include the marjoram in their common name (not to be confused with sweet marjoram).

Leaf Morphology:
Form:
Simple
Arrangement:
Opposite
Texture/Venation:
Soft flexible
Surfaces:
Pubescent, Glandular hairs, Distinctive smell
Colour in Fall:
Green
Shapes:
Ovate
Bases:
Cordate
Margins:
Ciliate, Dentate
Additional Info:
1-2 (-4)cm long

Inflorescence Type:
Cyme, Floriferous, Corymb-like
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Bilabiate
Ovary Position:
Superior
Colour (petals):
Showy, White, Purple, Pink (white to pink)
Flower Scent:
Spicy
Flower Time at Peak:
Jul, Aug

Fruit Type:
Schizocarp
Fruit Colour:
Brown
Fruiting Time:
Aug, Sep, Oct
Additional Info:
Not showy, Ovary separates into four tiny mericarps or "nutlets" that are enclosed in a persistent calyx

Bark or Stem Colour:
Organ Modifications:
Rhizomes
Propagation:
Seed, Greenwood cuttings, Division - below ground parts
Maintenance:
Low
Pest Susceptibility:
Fungal leaf spot, Leaf miner insect, Mites, Root rot (Pest resistant, Deer resistant, Rabbit resistant, Drought tolerant)

Course(s):
  • HORT 1193/1293
  • HORT 2355
Location(s):
  • (CGW)  Community Garden West
  • (GAZ)  GAZebo
  • (GAZN)  GAZebo North : q.2
  • (PDW)  PonD West
Location Map