Photo by Melody

PlantFiles: Tall Bearded Iris
Iris 'Decadence'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Decadence
Hybridized by Blyth; Year of Registration or Introduction: 2001

» View all varieties of Iris

28 members have or want this plant for trade.

Tall Bearded (TB)

36-48 in. (90-120 cm)

12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

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)

Sun Exposure:
Full Sun

Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Fuchsia (Red-Purple)
Gold (Yellow-Orange)

Bloom Time:
Midseason (M)


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
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
Walther Cup

Click thumbnail
to view:

By rshadlow
Thumbnail #1 of Iris  by rshadlow

By flowerfrenzy
Thumbnail #2 of Iris  by flowerfrenzy

By mgh
Thumbnail #3 of Iris  by mgh

By Margiempv
Thumbnail #4 of Iris  by Margiempv

By Tntigger
Thumbnail #5 of Iris  by Tntigger

By greenorchid
Thumbnail #6 of Iris  by greenorchid

By MikenMyrtle
Thumbnail #7 of Iris  by MikenMyrtle

There are a total of 34 photos.
Click here to view them all!


2 positives
2 neutrals
No negatives

Gardeners' Notes:

Positive RobertWM On Jun 1, 2013, RobertWM from Clawson, MI wrote:

Decadence is one of the most celebrated iris of the last twenty years or so and for good reason. Big beautiful flowers, strong stalks and great growth. Absolutely nothing not to like.

Neutral ronkw On Jun 21, 2011, ronkw from Thornhill On
Canada wrote:

AIS John C. Wister Memorial Medal 2010

Positive MikenMyrtle On Apr 21, 2009, MikenMyrtle from Myrtle Beach, SC wrote:

I cannot speak for other areas within Zone 8, but here in coastal SC (north coastal), this flower is an excellent grower, very good increaser. The standards in the evening sun have an orange/melonish glow. Looks-wise, Decadence is a real showstopper.

Neutral Joan On Jul 17, 2006, Joan from Belfield, ND (Zone 4a) wrote:

American Iris Society Awards: Honorable Mention 2006; Walther Cup 2006, Award of Merit 2008


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

Phoenix, Arizona
Bakersfield, California
San Jose, California
Monroe, Connecticut
Gainesville, Georgia
Hebron, Kentucky
Durham, Maine
Revere, Massachusetts
Chelsea, Michigan
Clawson, Michigan
Saint Paul, Minnesota
Robertsville, Missouri
South Sioux City, Nebraska
Salem, New Jersey
Oklahoma City, Oklahoma
Grants Pass, Oregon
Myrtle Beach, South Carolina
Greeneville, Tennessee
Winnsboro, Texas
Pleasant Grove, Utah

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