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Prairie Iris

Iris hexagona

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: hexagona (hek-sa-GON-uh) (Info)
» View all varieties of Iris




24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


15-18 in. (38-45 cm)


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)

USDA Zone 10a: to -1.1 C (30 F)

Sun Exposure:

Full Sun

Sun to Partial Shade


Parts of plant are poisonous if ingested

Bloom Color:

Light Blue

Bloom Time:

Midseason (M)

Late Midseason (MLa)



Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:


Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

From seed; direct sow outdoors in fall

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Seed does not store well; sow as soon as possible

Awards (if applicable):

Unknown - Tell us

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Requires consistently moist soil; do not let dry out between waterings

Very high moisture needs; suitable for bogs and water gardens

Where to Grow:

Unknown - Tell us


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

Bartow, Florida

Lady Lake, Florida

Sebring, Florida

Coushatta, Louisiana

Fort Worth, Texas

Weatherford, Texas

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Gardeners' Notes:


On Mar 7, 2005, NativePlantFan9 from Boca Raton, FL (Zone 10a) wrote:

Dixie Iris or Prairie Iris (Iris hexagona) is native to many habitats in the southeastern United States, including wet sites, pastures, swamps, marshes as well as open, drier sites or seasonally dry/moist sites. It is found from South Carolina south to central Florida, west into Texas, and up the Mississippi Valley into Arkansas and Missouri. It has beautiful flowers ranging from deep purple violet with a yellow center to lighter purple with a yellow center or even to nearly light blue with a yellow center. The flowers may attract pollinating insects.

It is a perennial iris.