Reticulated Iris 'Harmony'

Iris reticulata

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: reticulata (reh-tick-yoo-LAY-tuh) (Info)
Cultivar: Harmony
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Species (SPEC)


under 6 in. (15 cm)


9-12 in. (22-30 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:

Full Sun

Sun to Partial Shade


Parts of plant are poisonous if ingested

Bloom Color:

Medium Blue

Bloom Time:

Extra early (EE)



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:

Unknown - Tell us

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):

Unknown - Tell us

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are good for cutting

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


This plant is said to grow outdoors in the following regions:

Middletown, California

Loveland, Colorado

Lawrenceville, Georgia

Chicago, Illinois

Hebron, Kentucky

Foxboro, Massachusetts

Sandwich, Massachusetts

Westford, Massachusetts

Pinconning, Michigan

Saint Paul, Minnesota

Albuquerque, New Mexico

Cary, North Carolina

Newton, North Carolina

Warrensville, North Carolina

Chiloquin, Oregon

Albion, Pennsylvania

Lafayette, Tennessee

Plano, Texas

Tremonton, Utah

Vancouver, Washington

Sturgeon Bay, Wisconsin

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Gardeners' Notes:


On Feb 12, 2012, sandrasparrow from Middletown, CA (Zone 9b) wrote:

1st to Bloom 2.8.12 of 40 types of Bulbs planted in the Fall : ) Absolutely Beautiful! Brilliant Colors : )


On Apr 9, 2005, orange_knickers from Joseph, OR (Zone 5a) wrote:

The first bloomer in my gardens. Striking color and long lasting flowers. This bloomed in 3 hours of sun per day.


On Mar 22, 2004, celtic_dolphin from Boone, NC (Zone 4b) wrote:

Absolutely the first in my garden to bloom each spring. The flower multiplies rapidly - I planted in groups of 5 and they became big, beautiful clusters in just 3 years! The only down-side I can think of to this plant is that sometimes the blooms would come too early and then be frozen - but that was in zone 7 - I think they will hold off blooming for a longer period in cooler climates.


On Feb 26, 2003, vroomp from Marietta, GA (Zone 7a) wrote:

One of the first to bloom in spring, 'Harmony' make a great adition to Crocus and Daffodils adding a bit of Royal Blue with Yellow to your Spring Garden. Easily grown in full sun or light shade this Iris can tolerate a wide range of temperatures. In southern zones Bloom Time can be as early as January with mild winter temps.