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Family: Iridaceae (eye-rid-AY-see-ee) (Info) Genus: Iris (EYE-ris) (Info) Cultivar: Clarence Hybridized by Zurbrigg; Year of Registration or Introduction: 1990
Height: 24-36 in. (60-90 cm) 36-48 in. (90-120 cm)
Spacing: 12-15 in. (30-38 cm) 15-18 in. (38-45 cm)
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)
Sun Exposure: Full Sun Sun to Partial Shade
Danger: Parts of plant are poisonous if ingested
Bloom Color: Blue-Violet White/Near White
Bloom Time: Midseason (M) Reblooming (Re)
Foliage: Herbaceous
Other details: Flowers are fragrant Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting: N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Awards (if applicable): Honorable Mention Award of Merit John C. Wister Memorial Medal (TB)
On Sep 27, 2006, docturf from Conway, SC (Zone 8b) wrote:
Planted October 10, 2005; bloomed September 21, 2006 !!
It has multiplied rapidly (from a single "fan" to 4 "fans" as of this posting) and there are a total of 9 flower buds. This has proved to be an outstanding cultivar for me (coastal South Carolina). Docturf
On Jun 20, 2005, Elizabethtown from Hagerstown, MD (Zone 6a) wrote:
Clarence had a bad first year bloom. His S. & F. appeared to have blisters on the edges. Smell was ok wouldn't say its a heavy fragrance. I can see though that this is one that will rebloom here and that makes it a keeper inspite of the blistered effect.
On May 24, 2005, linjasar from Sarver, PA (Zone 5a) wrote:
This is the first Iris to bloom each year, and the most likely rebloomer w/o extra effort. Large and showy, it stands out among all the others across the yard.
On Dec 2, 2004, Margiempv from Oro Valley, AZ (Zone 9a) wrote:
Reblooms, eye catching!!
Regional...
This plant has been said to grow in the following regions:
Tucson, Arizona Cedar Rapids, Iowa Mcgregor, Iowa Durham, Maine Hagerstown, Maryland Deer River, Minnesota Union, New Jersey Roswell, New Mexico Mechanicsburg, Pennsylvania Sarver, Pennsylvania Conway, South Carolina Myrtle Beach, South Carolina Greeneville, Tennessee Readyville, Tennessee Chantilly, Virginia Portsmouth, Virginia