Scientific Name:
Jacobaea maritima
Pronunciation:
jak-koh-BAY-ee-uh muh-RIT-ih-muh
Common Name:
dusty miller
Family Name:
Asteraceae
Plant Type:
Herbaceous perennial, Semi-evergreen
Key ID Features:
Coral-like appearance, evergreen, often used as an annual in flower beds; leaves alternate, simple, ovate, most blades 5-10cm long x 2-5cm wide, deeply pinnately oblong-lobed, petioles 3-5cm long, covered in white to gray velvety hairs; heads of yellow disc and ray florets ~1.5cm wide, in a loose corymb-like arrangement will appear in summer of the second year (if not removed as a bedding plant).
Habit:
Arching
Form:
Mounded
Texture:
Medium - fine
Mature Height:
0.2 - 0.4m
Mature Spread:
0.3 - 0.6m
Growth Rate:
Moderate
Origin:
Africa, Europe
Hardiness Rating:
Zone 7: (-18 to -12 °C)
Exposure:
Full sun
Soil/Growing Medium:
Well-drained
Water Use:
Low
Landscape Uses:
Bedding plant, Group or mass planting, Rock garden, Summer interest (Caution: poisonous parts)
Additional Info:
Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Alternate
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Pubescent, Tomentose
Colour in Summer:
Silver / Grayish, fine hairs or 'dust' develops over dark green leaves soon after they form
Colour in Fall:
Silver / Grayish
Shapes:
Ovate
Apices:
Acute
Bases:
Oblique (uneven)
Margins:
Pinnately lobed
Inflorescence Type:
Small heads arranged in a corymb
Flower Morphology:
Flowers perfect
Corolla Shape:
Ligulate
Ovary Position:
Inferior
Colour (petals):
Showy, Yellow
Flower Scent:
None
Flower Time at Peak:
Jul, Aug
Fruit Type:
Cypsela (achene + calyx)
Fruit Colour:
Brown
Fruiting Time:
Sep, Oct
Additional Info:
Fruit insignificant
Bark Morphology:
Smooth
Bark or Stem Colour:
Grey, Green, Brown
Propagation:
Seed, Softwood cuttings
Maintenance:
Low
Pest Susceptibility:
Rust (Pest resistant, Disease resistant, Deer resistant, Rabbit resistant)
Course(s):
- HORT 1155
- HORT 1193/1293
- Level 1 Apprenticeship
Location(s):
- (BED) BEDding, container, or basket
- (HPZ) Horticulture PlaZa
- (WDH) Wark-Dumais House