Photo by Melody

PlantFiles: Tall Bearded Iris
Iris 'Conjuration'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Conjuration
Hybridized by Byers; Year of Registration or Introduction: 1988

» View all varieties of Iris

One vendor has this plant for sale.

26 members have or want this plant for trade.

Tall Bearded (TB)

24-36 in. (60-90 cm)
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)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Sun to Partial Shade

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

Bloom Color:
White/Near White

Bloom Time:
Midseason (M)
Late Midseason (MLa)
Late (La)


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:
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
Dykes Memorial Medal
John C. Wister Memorial Medal (TB)

Click thumbnail
to view:

By sjlfinne
Thumbnail #1 of Iris  by sjlfinne

By judithandrews
Thumbnail #2 of Iris  by judithandrews

By jfrizzell
Thumbnail #3 of Iris  by jfrizzell

By Margiempv
Thumbnail #4 of Iris  by Margiempv

By Wandasflowers
Thumbnail #5 of Iris  by Wandasflowers

By carolann
Thumbnail #6 of Iris  by carolann

By Terri1948
Thumbnail #7 of Iris  by Terri1948

There are a total of 24 photos.
Click here to view them all!


3 positives
1 neutral
No negatives

Gardeners' Notes:

Positive RobertWM On Oct 18, 2006, RobertWM from Clawson, MI wrote:

A terrific grower and heavy bloomer, it usually starts my iris bloom season and comes close to finishing it. It gets very tall for me (often reaches 52"), and has bright, orchid-like colors which show up all the way across the yard. Not every Dykes medal winner seems to deserve its award but this one deserves every honor it's received. A standout!

Positive TBGDN On Feb 17, 2006, TBGDN from (Zone 5a) wrote:

CONJURATION: (Monty Byers, R. 1988). Sdlg. D1-1. TB 36" (91 cm) M-L. "S. white, edge lightly infused pale violet blue; F. white, suffusing to deep bright amethyst violet edge; white beard tipped tangerine; fuzzy white horns; ruffled. B-37-10: (Sky Hooks x Condottiere) X Alpine Castle., Moonshine Gardens 1989. HM 1991, AM 1994, Wister 1998, Dykes 1998". Very tall stems; usually stands at 38-42". Good garden habits, no hardiness problems here.

Neutral Joan On Dec 26, 2005, Joan from Belfield, ND (Zone 4a) wrote:

Awards: American Iris Society Honorable Mention 1991, Award of Merit 1994, John C. Wister Medal 1998, Dykes Medal 1998

Positive Margiempv On Dec 2, 2004, Margiempv from Oro Valley, AZ (Zone 9a) wrote:

Dykes Medal Winner. Good grower. It is nice and tall, with great branching and color. Dependable blooms every year.


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

Tucson, Arizona
Vail, Arizona
Bakersfield, California
Emerald Lake Hills, California
Stanford, California
Monroe, Connecticut
Chicago, Illinois
Westchester, Illinois
Macy, Indiana
Cedar Rapids, Iowa
Oskaloosa, Kansas
Hebron, Kentucky
Anacoco, Louisiana
Durham, Maine
Finksburg, Maryland
Hagerstown, Maryland
Preston, Maryland
West Springfield, Massachusetts
Belleville, Michigan
Clawson, Michigan
Tupelo, Mississippi
Robertsville, Missouri
Saint Louis, Missouri
Shepherd, Montana
Auburn, New Hampshire
Salem, New Jersey
Los Alamos, New Mexico
Santa Teresa, New Mexico
Lawton, Oklahoma
Oklahoma City, Oklahoma
Thackerville, Oklahoma
Salem, Oregon (2 reports)
Elizabethton, Tennessee
Greeneville, Tennessee
Bryan, Texas
Harker Heights, Texas
Lubbock, Texas
Portsmouth, Virginia
Chewelah, Washington
Madison, Wisconsin

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