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Tickseed Coreopsis grandiflora

Phonetic Spelling
kor-ee-OP-sis gran-dih-FLOR-uh
Description

Large-Flower Tickseed is a native perennial wildflower in the aster family.  It has very showy bright yellow flowers and blooms late spring to late summer. Deadhead spent flowers to prolong the blooming season. It is clump-forming and grows 1-3 feet tall and wide. 

It prefers a sunny location in well-drained soil in the drier portion of the garden. Its preference is for sandy or rocky soils but will adapt to clay soils if it's well-drained. Large-Flower Tickseed may not always be reliably perennial but will reseed itself in the garden. Clumps can also be divided in early spring.

Use in the border or rock gardens and in swaths to provide a long season of color.

 

 

See this plant in the following landscapes:
Pollinator and Culinary Garden Pollinator Garden- Partial Shade
Cultivars / Varieties:
  • 'Early Sunrise'
    Semi-double 2" yellow rays dark yellow disks 18" tall.
  • 'Hot Paprika'
    Red flowers
  • 'SunKiss'
    Yellow flowers with burgundy centers
  • 'Sunray'
    Semi-double flowers
Tags:
#sun#showy flowers#drought tolerant#NC native#long bloom time#borders#self-seeding#pollinator plant#native wildflower#fantz#dry soils tolerant#HS302#non-toxic for horses#non-toxic for dogs#non-toxic for cats
 
Cultivars / Varieties:
  • 'Early Sunrise'
    Semi-double 2" yellow rays dark yellow disks 18" tall.
  • 'Hot Paprika'
    Red flowers
  • 'SunKiss'
    Yellow flowers with burgundy centers
  • 'Sunray'
    Semi-double flowers
Tags:
#sun#showy flowers#drought tolerant#NC native#long bloom time#borders#self-seeding#pollinator plant#native wildflower#fantz#dry soils tolerant#HS302#non-toxic for horses#non-toxic for dogs#non-toxic for cats
  • Attributes:
    Genus:
    Coreopsis
    Species:
    grandiflora
    Family:
    Asteraceae
    Life Cycle:
    Perennial
    Recommended Propagation Strategy:
    Division
    Seed
    Country Or Region Of Origin:
    Canada, U.S.A., NC
    Distribution:
    USA: AL , AR , CT , FL , GA , IA , IL , IN , KS , KY , LA , MD , ME , MI , MO , MS , NC , NJ , NM , NY , OH , OK , PA , RI , SC , TN , TX , VA , VT , WI , WV Canada: ON, QC
    Dimensions:
    Height: 1 ft. 0 in. - 3 ft. 0 in.
    Width: 1 ft. 0 in. - 3 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Herbaceous Perennial
    Native Plant
    Wildflower
    Woody Plant Leaf Characteristics:
    Deciduous
    Habit/Form:
    Cascading
    Clumping
    Erect
    Growth Rate:
    Medium
    Maintenance:
    Medium
    Texture:
    Fine
  • Cultural Conditions:
    Light:
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    Clay
    Sand
    Shallow Rocky
    Soil pH:
    Acid (<6.0)
    Neutral (6.0-8.0)
    Soil Drainage:
    Good Drainage
    Occasionally Dry
    Available Space To Plant:
    12 inches-3 feet
    NC Region:
    Coastal
    Mountains
    Piedmont
    USDA Plant Hardiness Zone:
    4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
  • Fruit:
    Display/Harvest Time:
    Summer
    Fruit Type:
    Achene
    Fruit Description:
    The achenes are flat and oblong.
  • Flowers:
    Flower Color:
    Gold/Yellow
    Flower Inflorescence:
    Head
    Flower Bloom Time:
    Spring
    Summer
    Flower Shape:
    Radial
    Flower Petals:
    7 - 20 petals/rays
    Flower Size:
    1-3 inches
    Flower Description:
    The 2.5-inch yellow flower consists of 6-12 yellow ray florets that surround numerous golden yellow disk florets. Each ray has 4-5 notches along the outer edge of the petal. It blooms late spring to late summer.
  • Leaves:
    Woody Plant Leaf Characteristics:
    Deciduous
    Leaf Color:
    Green
    Leaf Type:
    Simple
    Leaf Arrangement:
    Opposite
    Leaf Shape:
    Pinnatifid
    Leaf Margin:
    Lobed
    Hairs Present:
    No
    Leaf Length:
    1-3 inches
    Leaf Width:
    < 1 inch
    Leaf Description:
    The upper leaves are opposite and pinnatifid and deeply lobed, but lower leaves at the base of the plant are lobeless and linear. Lower leaves are up to 3 inches long and 2 inches wide. The upper leaves at 1/2 inch wide.
  • Stem:
    Stem Color:
    Green
    Stem Is Aromatic:
    No
  • Landscape:
    Landscape Location:
    Naturalized Area
    Landscape Theme:
    Native Garden
    Pollinator Garden
    Rock Garden
    Design Feature:
    Border
    Mass Planting
    Small groups
    Attracts:
    Bees
    Butterflies
    Pollinators