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Siberian Iris
Iris sibirica 'Coronation Anthem'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: sibirica (sy-BEER-ah-kuh) (Info)
Cultivar: Coronation Anthem
Hybridized by Hollingworth
Registered or introduced: 1990
» View all varieties of Iris

Class:

Siberian (SIB)

Height:

24-36 in. (60-90 cm)

Spacing:

12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

18-24 in. (45-60 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)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Medium Blue

Cream/Tan

Bloom Time:

Midseason (M)

Foliage:

Herbaceous

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.1 to 5.5 (strongly acidic)

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

Patent Information:

Non-patented

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

Morgan-Wood Medal (SIB)

Regional

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

Durham, Maine

Deer River, Minnesota

Saint Paul, Minnesota

Hannibal, New York

Coshocton, Ohio

Albany, Oregon

Vancouver, Washington

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Gardeners' Notes:

2
positives
1
neutral
0
negatives
RatingContent
Positive

On Jan 27, 2009, Mainer from Durham, ME (Zone 3a) wrote:

Very hardy fast multiplying siberian of a very lovely shad of blue in color.

Positive

On Oct 7, 2007, pollyk from Hannibal, NY (Zone 6a) wrote:

Excellent strong growing tetraploid siberian. Performs well year after year. Tends to rebloom here early fall.

Neutral

On Jan 7, 2006, Joan from Belfield, ND (Zone 4a) wrote:

Awards: American Iris Society Honorable Mention '92, Award of Merit '94, Morgan-Wood Medal '97