Photo by Melody

PlantFiles: Winter-blooming Algerian Iris
Iris unguicularis 'Mary Barnard'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: unguicularis (un-gwee-kew-LAIR-iss) (Info)
Cultivar: Mary Barnard

» View all varieties of Iris

One vendor has this plant for sale.


12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)

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

All parts of plant are poisonous if ingested

Bloom Color:
Medium Blue

Bloom Time:
Extra early (EE)

Unknown - Tell us

Other details:
Unknown - Tell us

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Awards (if applicable):
Unknown - Tell us

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By RandyRick
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By RandyRick
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By Domehomedee
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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive Domehomedee On Jan 7, 2013, Domehomedee from Arroyo Grande, CA (Zone 9a) wrote:

I have had these in my garden for over 10 years. They have nice strap type leaves and bloom in winter, December - February here in coastal California. The blooms are down in the foliage so they are best positioned near a path or to the front of the flower bed.

Positive RandyRick On Dec 24, 2011, RandyRick from Dahlonega, GA (Zone 7b) wrote:

I have 3 Mary Barnard's blooming on Christmas Eve 2011 in my garden. These were planted last spring along with 2 other cultivars of Winter Iris.


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

Arroyo Grande, California
Dahlonega, Georgia
Freeland, Washington

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