Details of...
Scientific Name: Acanthus mollis
Pronunciation: uh-KAN-thus MOLL-iss
Common Name: common bear’s breeches
Family Name: Acanthaceae
Plant Type: Herbaceous perennial
Key ID Features: Leaves shiny, dark green, blades up to 40 cm long and 25 cm wide with a long petiole; florets up to 5 cm long with purple "helmet", on a cylindrical spike 30–40 cm long.
Course(s): not used (on campus)

Form: Round
Texture: Coarse
Mature Size:
Height:0.7 - 1.3m
Spread:0.6 - 1.0m
Growth Rate:Moderate
Origin: Africa, Europe
Hardiness Rating: Zone 7: (-18 to -12 C)
Exposure: Full sun only if soil kept moist, Part sun/part shade
Soil/ Growing Medium: Humus rich, Well-drained
Landscape Uses: Accent plant
Additional Info: Google. Compare to A. spinosus and A. hungaricus which are quite similar.
common bear’s breeches
Leaf Morphology:
Form: Lobed, Simple
Arrangement: Basal
Texture/ Venation: Pinnate venation, Soft flexible
Surfaces: Lustrous
Colour in Fall: Yellow
Leaf(let) Terms:
Shapes: Elliptic, Ovate
Apices: Obtuse
Bases: Obtuse
Margins: Dentate, Pinnately lobed

Inflorescence Type: Raceme
Flower Morphology:Flowers perfect
Number of Petals:5
Corolla Shape:Bilabiate
Ovary Position:Superior
Colour (petals): Showy, White, Purple
Flower Time at Peak: Jun, Jul

Fruit Type: Capsule
Fruit Colour: Brown
Fruiting Time:
Additional Info: Not showy, (two locules)

Bark or Stem Colour:
Organ Modifications: Rhizomes

Propagation: Seed, Division - below ground parts
Pest Susceptibility: Pest resistant, Rabbit resistant, Fungal leaf spot
(GAZ) GAZebo
(GAZW) GAZebo West
(HPZ) Horticulture PlaZa
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