Photo by Melody

PlantFiles: Coreopsis, Tickseed
Coreopsis 'Redshift'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Coreopsis (kor-ee-OP-sis) (Info)
Cultivar: Redshift
Additional cultivar information: (PP20412, Big Bang Series, aka Red Shift)
Hybridized by Probst; Year of Registration or Introduction: 2008

9 vendors have this plant for sale.

11 members have or want this plant for trade.

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24-36 in. (60-90 cm)

24-36 in. (60-90 cm)

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)

Sun Exposure:
Full Sun


Bloom Color:
Scarlet (Dark Red)

Bloom Time:
Mid Summer
Late Summer/Early Fall


Other details:
Drought-tolerant; suitable for xeriscaping

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
By dividing the rootball

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive InsaniD On Apr 14, 2014, InsaniD from Columbia, MO wrote:

Grows well in heat and humidity, unlike the threadleaf varieties. Can take almost half shade as well. Starts to shift when the temps cool off, otherwise it has very little red showing. But man, once you get cool evenings, it "shifts" its' heart out...

Neutral mcrousse On Sep 6, 2011, mcrousse from Holly Springs, NC (Zone 7b) wrote:

This is my first year growing this plant. While it has been vigorous, it does indeed need support (could be due to rich soil). This plant has not done any "red shifting" in my garden, so at this point, it's not that impressive. It might need another year to start performing, though, or perhaps cooler weather.

Positive ms_greenjeans On Jul 15, 2010, ms_greenjeans from Hopkins, MN (Zone 4a) wrote:

I have trouble with any kind of coreopsis coming back from year to year. Much to my surprise, this one did return. It needs support because it is quite tall and the blooms are large. The first year I had it the flowers did not change colors in late summer/fall, but this year they did. It's pretty, long-blooming, and quite trouble free, so I am very happy with it.


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

Fairfield, California
Denver, Colorado
Dover, Delaware
Hubbardston, Massachusetts
Hopkins, Minnesota
Columbia, Missouri
Elizabeth City, North Carolina
Holly Springs, North Carolina
Lititz, Pennsylvania
Wilkes Barre, Pennsylvania
Knoxville, Tennessee
Jacksonville, Texas
Evington, Virginia
Ferndale, Washington

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