Siberian Iris
Iris sibirica 'Riverdance'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: sibirica (sy-BEER-ah-kuh) (Info)
Cultivar: Riverdance
Hybridized by Schafer/Sacks
Registered or introduced: 1997
» View all varieties of Iris

Class:

Siberian (SIB)

Height:

36-48 in. (90-120 cm)

Spacing:

18-24 in. (45-60 cm)

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)

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

White/Near White

Bloom Time:

Late Midseason (MLa)

Foliage:

Herbaceous

Blue-Green

Veined

Other details:

Average Water Needs; Water regularly; do not overwater

This plant is resistant to deer

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:

Carlisle, Massachusetts

Shelburne Falls, Massachusetts

Pequannock, New Jersey

Vancouver, Washington

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Positive

On Jan 28, 2015, coriaceous from ROSLINDALE, MA wrote:

In 2006, this iris won the Morgan-Woods Medal, the highest award the American Iris Society can give a Siberian iris.

The breeders, Marty Schafer and Jan Sacks, have written:

"Stunning rich blue flowers with large rolling ruffles. A sprinkling of white on the falls, and white wire edges on the falls and styles.

"Plenty of stalks with four to five buds each."

Height 40-45".

Schafer-Sacks irises have won 7 of the last 9 Morgan-Woods Medals.

Neutral

On Jul 17, 2006, Joan from Belfield, ND (Zone 4a) wrote:

American Iris Society Awards: Honorable Mention 2000; Award of Merit 2002; Morgan-Wood Medal 2006