Tall Bearded Iris 'Gladys Austin'


Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Gladys Austin
Hybridized by Osborne
Registered or introduced: 1985
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Tall Bearded (TB)


36-48 in. (90-120 cm)


12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

18-24 in. (45-60 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)

Sun Exposure:

Full Sun


Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Gold (Yellow-Orange)



Bloom Time:

Midseason (M)



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:


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):

Honorable Mention

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are fragrant

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


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


Chico, California

Colton, California

Paradise, California

Santa Cruz, California

Sandwich, Massachusetts

Robertsville, Missouri

Shepherd, Montana

Las Cruces, New Mexico

Lawton, Oklahoma

Greeneville, Tennessee

Round Rock, Texas (2 reports)

Portsmouth, Virginia

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Gardeners' Notes:


On Apr 22, 2015, eolivas103 from Las Cruces, NM (Zone 8a) wrote:

My first thought when I saw it was...Unbelievable. This flower has the most amazing colors. Some flowers are tipped with 2 bands of color, a prominent brown on the edge and a subtle red band next to that as the band fades into the falls. The falls are painted in orchid and lilac with a diamond dust finish. The Standards are yellow gold. The shoulders are orange and white. If there were anything I would lean towards not liking on this Iris, it is the horns because I am currently not much into the Space Agers. But...This Iris has so much going on at once, it would almost have to have horns, or the beards would be completely lost. And actually the horns fit the rest of the flower perfect. If you like color, consider this one.