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PlantFiles: Bigflower Coreopsis, Largeflowered Tickseed, Tickseed Coreopsis
Coreopsis grandiflora 'Sunfire'

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Coreopsis (kor-ee-OP-sis) (Info)
Species: grandiflora (gran-dih-FLOR-uh) (Info)
Cultivar: Sunfire

3 vendors have this plant for sale.

8 members have or want this plant for trade.

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Category:
Perennials

Height:
18-24 in. (45-60 cm)

Spacing:
18-24 in. (45-60 cm)

Hardiness:
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun

Danger:
N/A

Bloom Color:
Bright Yellow

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous
Smooth-Textured

Other details:
Drought-tolerant; suitable for xeriscaping
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; sow indoors before last frost

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry
Properly cleaned, seed can be successfully stored

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There are a total of 16 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive drobarr On Jul 15, 2013, drobarr from Hummelstown, PA (Zone 6b) wrote:

Beautiful flowers begining around early June. Must be dead headed to produce additional flowers as well as have plenty of moisture. Mine seems to be quite susceptible to powdery mildew.

Regional...

This plant has been said to grow in the following regions:

Albertville, Minnesota
Elizabeth City, North Carolina
Cleveland, Ohio
Baden, Pennsylvania
Hummelstown, Pennsylvania
Knoxville, Tennessee
Amarillo, Texas
Haltom City, Texas
Houston, Texas
Los Fresnos, Texas
Spring, Texas



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