Tall Bearded Iris
Iris 'Mme. Henri Cayeux'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Mme. Henri Cayeux
Hybridized by Cayeux
Registered or introduced: 1924
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Class:

Tall Bearded (TB)

Height:

24-36 in. (60-90 cm)

36-48 in. (90-120 cm)

Spacing:

12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

18-24 in. (45-60 cm)

Hardiness:

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

Danger:

Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Fuchsia (Red-Purple)

Bloom Time:

Late Midseason (MLa)

Foliage:

Herbaceous

Other details:

Unknown - Tell us

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:

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):

Historic/Retired Awards No Longer Distributed (See Comments)

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

Regional

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

Rock Falls, Illinois

Cedar Rapids, Iowa

Durham, Maine

Billerica, Massachusetts

Blanchard, Michigan

Marquette, Michigan

Kingston, New York

Concord, North Carolina

Gold Hill, Oregon

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Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On May 7, 2010, Mrs_Ed from Whiteside County, IL (Zone 5a) wrote:

This is a really amazing performer in my zone. Lots of rhizome growth and plenty of bloom.

Positive

On Nov 11, 2008, hespiris from Kingston, NY (Zone 5b) wrote:

This has an intensity of dark purple that my camera did not capture - nothing else quite like this coloring. Awarded the CM by the SNHF (France) in 1924.