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PlantFiles: Intermediate Bearded Iris
Iris 'Protocol'

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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Protocol
Hybridized by Keppel; Year of Registration or Introduction: 1994

» View all varieties of Iris

7 members have or want this plant for trade.

Class:
Intermediate Bearded (IB)

Height:
18-24 in. (45-60 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:
Pale Yellow
Bright Yellow
White/Near White

Bloom Time:
Early midseason (EM)

Foliage:
Herbaceous

Other details:
Flowers are fragrant
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:
Non-patented

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Allow cut surface to callous over before planting

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
Hans and Jacob Sass Medal (IB)

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By carolann
Thumbnail #1 of Iris  by carolann

By carolann
Thumbnail #2 of Iris  by carolann

By laurief
Thumbnail #3 of Iris  by laurief

By laurief
Thumbnail #4 of Iris  by laurief

By laurief
Thumbnail #5 of Iris  by laurief

By grannymarsh
Thumbnail #6 of Iris  by grannymarsh

By spaceydaaggie
Thumbnail #7 of Iris  by spaceydaaggie

There are a total of 10 photos.
Click here to view them all!

Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive pajaritomt On May 12, 2009, pajaritomt from Los Alamos, NM (Zone 5a) wrote:

Protocol has been an eye catcher for everyone visiting my garden this spring before the Tall Beardeds have begun to bloom. Several visitors have remarked how much they like it. I have to say, I do to. It has the form of a Tall Bearded, but not the size -- an early beauty! Didn't bloom the first year, but bloomed profusely the second year.

Neutral Joan On Mar 25, 2006, Joan from Belfield, ND (Zone 4a) wrote:

American Iris Society Awards: Honorable Mention 1998; Award of Merit 2000; Hans and Jacob Sass Medal 2002

Regional...

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

,
Colorado Springs, Colorado
Montrose, Colorado
Hagerstown, Maryland
Deer River, Minnesota
Robertsville, Missouri
Omaha, Nebraska
Los Alamos, New Mexico
Roswell, New Mexico
Enid, Oklahoma
Greeneville, Tennessee
Marshall, Texas
Marion, Wisconsin
Casper, Wyoming



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