Scientific Name:
Coreopsis grandiflora
Pronunciation:
core-ee-OP-sis gran-dih-FLORE-uh
Common Name:
large flowered coreopsis
Family Name:
Asteraceae
Plant Type:
Herbaceous perennial
Key ID Features:
Leaves lanceolate with smooth margins, in groups of threes; flowers may be single or double, are orange-yellow and daisy-like; petals have slight lobes at the tip.
Habit:
Upright
Form:
Mounded
Texture:
Medium - fine
Mature Height:
0.4 - 0.7m
Mature Spread:
0.6 - 1.0m
Growth Rate:
Fast
Origin:
U.S. - central
Hardiness Rating:
Zone 7: (-18 to -12 °C)
Exposure:
Full sun
Soil/Growing Medium:
Well-drained
Water Use:
Moderate
Landscape Uses:
Attract beneficial insects, Cut flower or foliage, Perennial border
Additional Info:
Google. Cultivars shown or on campus may include C. 'Sonnenkind', C. 'Sunburst', C. 'Sunfire'. Most cvs. have relatively few large ray florets (look-a-likes may include cultivars of G. aristata and G. x grandiflora).
Leaf Morphology:
Form:
Simple
Arrangement:
Opposite
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Pubescent
Colour in Fall:
Green
Shapes:
Lanceolate
Apices:
Acuminate
Bases:
Attenuate
Margins:
Entire, Pinnately lobed
Inflorescence Type:
Head (capitulum)
Flower Morphology:
Flowers perfect
Corolla Shape:
Ligulate
Ovary Position:
Inferior
Colour (petals):
Showy, Yellow
Flower Scent:
None
Flower Time at Peak:
Jun, Jul, Aug, Sep
Fruit Type:
Achene
Fruit Colour:
Brown
Fruiting Time:
Sep, Oct
Additional Info:
Fruit insignificant
Bark or Stem Colour:
Green
Propagation:
Seed, Division - below ground parts
Pest Susceptibility:
Fungal leaf spot, Rust, Slugs or snails (Drought tolerant)
Course(s):
- not used (on campus)
Location(s):
- (BUG) BUG garden : dead?
- (WDH) Wark-Dumais House