Tall Bearded Iris 'Stairway to Heaven'

Iris

Family
Iridaceae (eye-rid-AY-see-ee)
Genus
Iris (EYE-ris)
Synonym
Spacing
36-48 in. (90-120 cm)
Hardiness
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
Sun Exposure
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)
Danger
Full Sun
Bloom Color
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Foliage
Dark Blue
White/Near White
Class
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Bloom Time
Other Details
Other details
Propagation Methods
Herbaceous
Seed Collecting
Soil pH requirements
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Allow cut surface to callous over before planting
Patent Information
Awards (if applicable)
Foliage Color
Bloom Characteristics
Perennials
Water Requirements
Where to Grow
Regional

This plant is said to grow outdoors in the following regions:

Houston, Alabama

Tempe, Arizona

Tucson, Arizona

Denver, Colorado

Blairsville, Georgia

Hawkinsville, Georgia

Nichols, Iowa

Manhattan, Kansas

Wichita, Kansas

Ventress, Louisiana

Durham, Maine

Belleville, Michigan

Detroit, Michigan

Royal Oak, Michigan

Deer River, Minnesota

Jackson, Mississippi

Tupelo, Mississippi

Robertsville, Missouri

Cut Bank, Montana

Harlowton, Montana

Reno, Nevada

Coshocton, Ohio

Enid, Oklahoma

Lawton, Oklahoma

Stroudsburg, Pennsylvania

Columbia, South Carolina

Greeneville, Tennessee

Readyville, Tennessee

Portsmouth, Virginia

Stuarts Draft, Virginia

Madison, Wisconsin

Tomah, Wisconsin

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Gardener's Notes:

3
positives
1
neutral
1
negative
Sort By:
Sort By:
M
Myrtle Beach, SC | September 2010 | negative

I would hope not to be excommunicated from irisdom for posting something negative about this flower, but as well as the plant has grown f...Read More

T
Jackson, MS | May 2009 | positive

Beautiful, frilly iris that is easy to care for.

D
D
Stanford, CA (Zone 9b) | March 2005 | neutral

"Stairway to Heaven won the American Iris Society Honorable Mention '95; Award of Merit '97; Wister Medal '99; Dykes Medal'00."
<...Read More

A
Reno, NV | June 2004 | positive

This has been a very prolific iris for me, multiplying very well and with numerous blooms on each stalk. It's very pretty and frilly, an...Read More

L
Deer River, MN (Zone 3b) | October 2003 | positive

Very few tall beardeds (TBs) can survive my growing conditions. This northern MN zone 3b climate inflicts severe, extended cold during t...Read More

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