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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info) Genus: Aquilegia (a-kwi-LEE-jee-a) (Info) Cultivar: Crimson Star Additional cultivar information: (aka Rotstern, Red Star)
Hardiness: USDA Zone 3a: to -39.9 °C (-40 °F) USDA Zone 3b: to -37.2 °C (-35 °F) 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)
Sun Exposure: Sun to Partial Shade
Danger: Seed is poisonous if ingested Parts of plant are poisonous if ingested
Bloom Color: Red Bright Yellow
Bloom Time: Late Spring/Early Summer Mid Summer
Foliage: Blue-Green
Other details: This plant is attractive to bees, butterflies and/or birds Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 5.1 to 5.5 (strongly acidic) 5.6 to 6.0 (acidic)
Propagation Methods: By dividing the rootball From seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; stratify if sowing indoors
Seed Collecting: N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
On May 30, 2009, Joan from Belfield, ND (Zone 4a) wrote:Editor's Note
Aquilegia is regarded as dangerous, in particular the seeds and roots. However, their acrid flavor generally helps to avoids poisonings.
The flowers of various species of Aquilegia were noted as historically being consumed with other fresh greens, and are reported to be very sweet, and safe if consumed in small quantities. The plant's seeds and roots are highly poisonous however, and contain cardiogenic toxins which cause both severe gastroenteritis and heart palpitations if consumed as food. However, this plant is better avoided due to its high toxicity; columbine poisonings may be fatal.
We tend to err on the side of caution in PlantFiles, and the danger notation in the details above is to warn gardeners, parents, and pet owners to look further for more information.
On Feb 28, 2006, TBGDN from Macy, IN (Zone 5b) wrote:
Having grown several strains of Columbines, this is one of my favorites. However, this particular cultivar is sensitive to severe cold and prolonged freezes (5a/b). At best I am only able to grow it for a maximum of three years, and then only if winters are not severe, and there is a thick snow cover. Even under these conditions it is a worthwhile plant. Other cultivars such as the 'Nora Barlow' and 'siberica' thrive and flourish here without regard to cold.
On Sep 11, 2004, pokerboy from Canberra Australia (Zone 8b) wrote:
A great plant for a moist cottage garden. Produces red flowers with a white inner petal and a yellow centre in spring through summer. Wonderful maiden hair like foliage that is evergreen. This perrenial is hady down -15 degrees. Aquilegia 'crimson star' is perfect for a cottage garden. pokerboy.
On May 23, 2002, Lilith from Durham United Kingdom (Zone 8a) wrote:
The Columbine Crimson Star produces red flowers with a yellow center. Aquilegia grows best in partial sun to partial shade.
Regional...
This plant has been said to grow in the following regions:
Chico, California Sacramento, California Des Plaines, Illinois Niles, Illinois Macy, Indiana Hebron, Kentucky Brookeville, Maryland Glen Burnie, Maryland Florence, Mississippi Lincoln, Nebraska Newport, North Carolina Jim Thorpe, Pennsylvania Saint George, Utah Salt Lake City, Utah Lexington, Virginia
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