Siberian Iris ‘Butter and Sugar’

Class:

Siberian (SIB)

Height:

24-36 in. (60-90 cm)

Spacing:

12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

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)

Sun Exposure:

Full Sun

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Pale Yellow

White/Near White

Bloom Time:

Midseason (M)

Foliage:

Herbaceous

Smooth

Other details:

Unknown – Tell us

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)

Foliage Color:

Unknown – Tell us

Bloom Characteristics:

Flowers are good for cutting

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown – Tell us

Regional

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

Plainfield, Illinois

Durham, Maine

South China, Maine

Beverly, Massachusetts

Wayland, Massachusetts

Deer River, Minnesota

Elk River, Minnesota

Wyoming, Minnesota

Auburn, New Hampshire

Portsmouth, New Hampshire

Hilton, New York

Concord, North Carolina

Coshocton, Ohio

Lewis Center, Ohio

MOUNT HOOD PARKDALE, Oregon

Norristown, Pennsylvania

Pittsburgh, Pennsylvania

Greeneville, Tennessee

Montpelier, Vermont

Portsmouth, Virginia

Bellevue, Washington

Madison, Wisconsin

Waterloo, Wisconsin

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