Species Iris Group of North America

What's An Iris? What's SIGNA? Seed Exchange
Publications* Species Database Spec-X IOTM
Upload Info
Upload Photo
Iris fulva

Botanical Name: Iris fulva (added by D. Kramb, 05-OCT-03)

Botanical Synonyms:

Iris cuprea, I. rubescens (D. Kramb, 05-OCT-03)


Louisiana, Hexagonae (D. Kramb, 05-OCT-03)

Apogon, Beardless Iris (D. Kramb, 01-JAN-04)

Common Names:

Copper iris (D. Kramb, 05-OCT-03)

Chromosome Count:

2n=42 according to the SIGNA Checklist of Iris Species (D. Kramb, 18-SEP-04)

General Description:

18"-31" (45-80cm) tall, with red, copper, orangish, or yellow flowers (D. Kramb, 05-OCT-03)

Flowers are 4" to 4.5" (10-12cm) across in brick red, rust red, or coppery red, occasionally yellow. Flowers generally drooping with occasional slight flare. (D. Kramb, 01-JAN-04)

Distinguishing Features:

Rhizomes are 4 to 5 inches long and do not exceed 3/4" diameter (2cm). (D. Kramb, 01-JAN-04)

The anthers often extend beyond the tips of the style arms, a characteristic unique to Iris fulva. (D. Kramb, 16-MAY-04)

Preferred Habitat:

Open wetlands, sunny streambanks (D. Kramb, 05-OCT-03)

Partial shade to full sun. Swamps, streams, canals, and roadside ditches. Grows best in fertile soil rich in organic matter. (D. Kramb, 01-JAN-04)


Estimated Zone 3-10 (D. Kramb, 05-OCT-03)

Native Range:

USA (Mississippi River Valley) (D. Kramb, 18-SEP-04)

Status in the Wild:


Commercial Availability:

Specialty. Often available at water garden centers. (D. Kramb, 01-JAN-04)

Sources Cited:

Most info added on 01-JAN-04 comes from the book "The Louisiana Iris: Taming of a North American Wildflower". (D. Kramb, 01-JAN-04)

Additional Comments:

Does not tolerate dense shade or brackish water. (D. Kramb, 01-JAN-04)

This species has performed exceedingly well for me in Zone 6 with no winter protection, even plants wild collected in the Deep South (USA). It has done best when grown in a pond rather than in a garden bed. (D. Kramb, 31-DEC-05)

Where to buy it:

Arrowhead Alpines

Durio Nursery

Hildenbrandt's Iris Garden

SIGNA member!

Pine Ridge Gardens

Plant Delights Nursery

Prairie Moon Nursery

Shooting Star Nursery

Sunlight Gardens

Zydeco Louisiana Iris Garden

SIGNA member!

© 1999-2020, SIGNA. Material from this database may be freely used for non-profit purposes, provided that you give proper credit to the original photographer or contributor. For-profit organizations should contact the photographer or contributor directly to request permission. SIGNA may or may not have contact information for those individuals. Number of Species: 433, Number of Photos: 2121

© 2024, SIGNA. For general inquiries about SIGNA please contact Rodney Barton. Please report technical problems to dkramb@gmail.com.
* Some important new updates were added January 2024 indicated by the asterisk in the header. Please check them out!