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Bigflower Coreopsis, Largeflowered Tickseed, Tickseed Coreopsis 'Flying Saucers'

Coreopsis grandiflora

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Coreopsis (kor-ee-OP-sis) (Info)
Species: grandiflora (gran-dih-FLOR-uh) (Info)
Cultivar: Flying Saucers
Additional cultivar information:(aka Walcoreop)



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Where to Grow:

Unknown - Tell us


18-24 in. (45-60 cm)


15-18 in. (38-45 cm)


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



Bloom Color:

Bright Yellow

Bloom Time:

Mid Summer

Blooms repeatedly



This plant is resistant to deer

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow after last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds


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

Phoenix, Arizona

Menifee, California

Doerun, Georgia

Boise, Idaho

Constantine, Michigan

Westerville, Ohio

Cookeville, Tennessee

Nashville, Tennessee

Paris, Texas

Portland, Texas

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Gardeners' Notes:


On Jun 24, 2005, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

I love this plant!!! It does well no matter where I put it. It even tolerates light shade. Dead-heading regularly promotes more flowers. Roots tend to be shallow, so keep protected from strong winds. Mine is about 2' tall. The entire flower (including the center) is yellow.


On Jul 10, 2004, Avaliant65 from Mannford, OK wrote:

I purchased a can of wildflower seeds in 2000 and this is the only survivor of the bunch. It has propagated by resowing itself every year. It has become a bright spot in my garden and does very well with very little care. I have very heavy clay soil. I put a new layer of mulch on every year and feed with Miracle-Gro.