Siberian Iris
Iris sibirica 'Pennywhistle'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: sibirica (sy-BEER-ah-kuh) (Info)
Cultivar: Pennywhistle
Hybridized by Schafer/Sacks
Registered or introduced: 2000
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Class:

Siberian (SIB)

Height:

24-36 in. (60-90 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

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Gold (Yellow-Orange)

Light Blue

Blue-Violet

Purple

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):

Unknown - Tell us

Regional

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

Carlisle, Massachusetts

Deer River, Minnesota

Osseo, Minnesota

Coshocton, Ohio

Vancouver, Washington

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

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

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

"A lovely combination of old and new. Small, fluttery flowers with good substance and simple shape are blue and violet with delightful cream to gold signals.

"Seven blooms on each tall airy stalk over short blue-green leaves."

Height 34".

Schafer-Sacks irises have won 7 of the last 9 Morgan-Woods Medals, the highest award given to a Siberian iris by the American Iris Society.