Siberian Iris
Iris sibirica 'Frosty Rim'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: sibirica (sy-BEER-ah-kuh) (Info)
Cultivar: Frosty Rim
Hybridized by Bush
Registered or introduced: 1979
» 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 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:

Dark Blue

Blue-Violet

Bloom Time:

Late Midseason (MLa)

Foliage:

Herbaceous

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

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:

Deer River, Minnesota

Concord, North Carolina

Kingston, Washington

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Dec 19, 2004, Todd_Boland from St. John's, NL (Zone 5b) wrote:

'Frosty Rim' gets its name from the thin white margin along the edge of the falls. Otherwise the flowers are an even deep blue. The selection 'Silver Edge' is nearly identical, except the flowers are a shade paler blue. Any Siberian Iris collection should have one or the other.