Scientific Name:
Rudbeckia laciniata
'Herbstsonne'
Pronunciation:
rud-BECK-ee-uh luh-sin-ee-AY-tuh
Common Name:
Autumn Sun coneflower, cutleaf coneflower
Family Name:
Asteraceae
Plant Type:
Herbaceous perennial
Key ID Features:
Plants reaching 1.5-2.2m tall; leaves alternate, most ovate, 10-18cm long x 8-16cm wide, lobed and/ or laciniate (often to midrib to appear trifoliate), margin serrate; heads about 10cm wide with yellow ray florets and a cone of darker disk florets.
Habit:
Spreading, Upright
Form:
Oval - vertical
Texture:
Coarse
Mature Height:
2 - 3m
Mature Spread:
1.0 - 1.5m
Growth Rate:
Fast
Origin:
Garden origin, U.S. - central (Missouri)
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Well-drained
Water Use:
Moderate
Landscape Uses:
Accent plant, Aquatic - ponds, Attract beneficial insects, Attract butterflies, Cut flower or foliage, Fall interest, Fragrance, Group or mass planting, Mixed shrub border, Perennial border, Screening, Specimen plant, Summer interest, Tall background
Additional Info:
Google. Compare to R. 'Hortensia' (many more ray florets).
Leaf Morphology:
Form:
Simple, Lobed, Dissected
Arrangement:
Alternate
Texture/Venation:
Soft flexible
Surfaces:
Lustrous
Colour in Fall:
Green
Shapes:
Lanceolate, Oblanceolate, Ovate
Apices:
Acuminate, Acute
Bases:
Attenuate, Decurrent, Obtuse
Margins:
Pinnately lobed, Serrate
Inflorescence Type:
Head (capitulum), Floriferous
Flower Morphology:
Flowers perfect
Corolla Shape:
Ligulate
Ovary Position:
Inferior
Colour (petals):
Showy, Yellow
Flower Scent:
Fragrant
Flower Time at Peak:
Jul, Aug, Sep, Oct
Fruit Type:
Achene
Fruit Colour:
Brown
Fruiting Time:
Oct, Nov
Additional Info:
Not showy, Persistent
Bark or Stem Colour:
Green
Organ Modifications:
Rhizomes
Propagation:
Division - below ground parts
Maintenance:
Medium
Other:
Stems usually need support
Pest Susceptibility:
Aphids or adelgids, Mildew, Rust, Slugs or snails
Course(s):
- HORT 2355
Location(s):
- (BUG) BUG garden
- (GAZ) GAZebo
- (GAZN) GAZebo North : q.4