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Siberian Iris 'Roaring Jelly'

Iris sibirica

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: sibirica (sy-BEER-ah-kuh) (Info)
Cultivar: Roaring Jelly
Hybridized by Schafer-Sacks
Registered or introduced: 1992
» View all varieties of Iris


Siberian (SIB)


24-36 in. (60-90 cm)


18-24 in. (45-60 cm)


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


Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:



Bloom Time:

Late Midseason (MLa)



Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:


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)

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


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

Delhi, Iowa

Durham, Maine

Carlisle, Massachusetts

Roslindale, Massachusetts

Galesburg, Michigan

Deer River, Minnesota

Auburn, New Hampshire

Webster, New York

Coshocton, Ohio

Salem, Oregon

Norristown, Pennsylvania

Portsmouth, Virginia

Vancouver, Washington

Madison, Wisconsin

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Gardeners' Notes:


On Apr 7, 2014, coriaceous from ROSLINDALE, MA wrote:

A superb Siberian, one of the best. In 1999, this iris won the Morgan-Woods Medal, the highest award the American Iris Society can give to a Siberian iris.

"Roaring Jelly" is an old slang term for dynamite---not to mention a lively contradance tune, and the name of a local contradance band, both of which, like the iris, are indeed dynamite.

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

"A magnificent clump! Falls dappled bright raspberry on pale lavender. Standards paler and lightly dappled. Flowers full, round and slightly recurved. Strong repeat."

Note that with Siberian irises, rebloom means additional flower scapes rise in early summer shortly after the first flush of blooms. Unlike tall bearded irises, there is no... read more


On Dec 22, 2005, Joan from Belfield, ND (Zone 4a) wrote:

Awards: American Iris Society Honorable Mention '95, Award of Merit '97, Morgan Wood Medal '99