Siberian Iris
Irissibirica 'Unbuttoned Zippers'

Family: Iridaceae (eye-rid-AY-see-ee)
Genus: Iris (EYE-ris)
Species: sibirica (sy-BEER-ah-kuh)
Cultivar: Unbuttoned Zippers
Hybridized by Schafer-Sacks 2011

Height

18-24 in. (45-60 cm)

Spacing

18-24 in. (45-60 cm)
24-36 in. (60-90 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

All parts of plant are poisonous if ingested

Bloom Color

Red
Pale Yellow
Light Blue
Medium Purple

Foliage

Deciduous
Herbaceous
This plant is resistant to deer
Smooth
Unknown

Other details

Unknown

Propagation Methods

By dividing the rootball
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

Soil pH requirements

5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information

Non-patented

Class

Siberian (SIB)

Bloom Time

Midseason (M)
Reblooming (Re)

Awards (if applicable)

Unknown

Foliage Color

Unknown

Bloom Characteristics

Flowers are good for cutting
This plant is attractive to bees, butterflies and/or birds

Water Requirements

Average Water Needs; Water regularly; do not overwater

Where to Grow

Unknown