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
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)
Sun Exposure: Full Sun
Bloom Color: Scarlet (Dark Red) Cream/Tan
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: Patented
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
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.
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 Rodney Village, Delaware Hubbardston, Massachusetts Hopkins, Minnesota Elizabeth City, North Carolina Holly Springs, North Carolina Ashley, Pennsylvania Knoxville, Tennessee Jacksonville, Texas Evington, Virginia Ferndale, Washington