Intermediate Bearded Iris 'Protocol'

Iris

Family
Iridaceae (eye-rid-AY-see-ee)
Genus
Iris (EYE-ris)
Synonym
Spacing
18-24 in. (45-60 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
Pale Yellow
Bright Yellow
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
Water Requirements
Where to Grow
Regional

This plant is said to grow outdoors 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

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Featured Videos

Gardener's Notes:

1
positive
1
neutral
0
negative
Sort By:
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P
Los Alamos, NM (Zone 5a) | May 2009 | positive

Protocol has been an eye catcher for everyone visiting my garden this spring before the Tall Beardeds have begun to bloom. Several visit...Read More

J
J
Belfield, ND (Zone 4a) | March 2006 | neutral

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

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