Tall Bearded Iris 'Immortality'
Iris
Family: | Iridaceae (eye-rid-AY-see-ee) (Info) |
Genus: | Iris (EYE-ris) (Info) |
Cultivar: | Immortality |
Hybridized | by Zurbrigg |
Registered or introduced: | 1982 |

Class:
Tall Bearded (TB)
Height:
24-36 in. (60-90 cm)
Spacing:
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
Hardiness:
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
Danger:
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color:
White/Near White
Bloom Time:
Midseason (M)
Reblooming (Re)
Foliage:
Herbaceous
Other details:
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:
Non-patented
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
Award of Merit
Foliage Color:
Bloom Characteristics:
Flowers are good for cutting
Flowers are good for drying and preserving
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Water Requirements:
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Where to Grow:
Grow outdoors year-round in hardiness zone
Regional
This plant is said to grow outdoors in the following regions:
Houston, Alabama
Happy Jack, Arizona
Phoenix, Arizona(2 reports)
Tucson, Arizona
Sherwood, Arkansas
Cloverdale, California
Colton, California
Coto de Caza, California
Fresno, California
La Crescenta, California
Los Altos, California
Portola Hills, California
Denver, Colorado(2 reports)
Blairsville, Georgia
Hawkinsville, Georgia
Winterville, Georgia
Eastport, Idaho
Rathdrum, Idaho
Chicago, Illinois
Des Plaines, Illinois
Island Lake, Illinois
Lake In The Hills, Illinois
Waterman, Illinois
Williamsville, Illinois
Fort Wayne, Indiana
Petersburg, Indiana
Cedar Rapids, Iowa
Iowa City, Iowa
Nichols, Iowa
Olathe, Kansas
Wichita, Kansas
Barbourville, Kentucky
Durham, Maine
Gardiner, Maine
South China, Maine
, Manitoba
Preston, Maryland
Brewster, Massachusetts
Wayland, Massachusetts
Belleville, Michigan
Blanchard, Michigan
Galesburg, Michigan
Gladwin, Michigan
Grand Rapids, Michigan
Mason, Michigan
Royal Oak, Michigan
Trenton, Michigan
Williamston, Michigan
Deer River, Minnesota
Minneapolis, Minnesota
Madison, Mississippi
Alton, Missouri
Robertsville, Missouri
Saint Louis, Missouri
Harlowton, Montana
Shepherd, Montana
Whitehall, Montana
Lincoln, Nebraska
Mesquite, Nevada
Brick, New Jersey
Toms River, New Jersey
Las Cruces, New Mexico
Los Alamos, New Mexico
Bolton Landing, New York
Lake Placid, New York
Roslyn, New York
Concord, North Carolina
Ellerbe, North Carolina
Fayetteville, North Carolina
Greensboro, North Carolina
Morehead City, North Carolina
Belfield, North Dakota
Lawton, Oklahoma
Baker City, Oregon
Gold Hill, Oregon
Roseburg, Oregon
Salem, Oregon(2 reports)
Beaver Falls, Pennsylvania
Doylestown, Pennsylvania
Morrisville, Pennsylvania
Pennsburg, Pennsylvania
Warwick, Rhode Island
Columbia, South Carolina
Conway, South Carolina
Myrtle Beach, South Carolina
Seneca, South Carolina
Summerville, South Carolina
Celina, Tennessee
Collierville, Tennessee
Elizabethton, Tennessee
Greeneville, Tennessee
Readyville, Tennessee
Thompsons Station, Tennessee
Azle, Texas
Fort Worth, Texas
Garland, Texas
Greenville, Texas
Meridian, Texas
Richmond, Virginia
Roanoke, Virginia
Kalama, Washington
Vancouver, Washington(2 reports)
Eau Claire, Wisconsin
Little Suamico, Wisconsin
Madison, Wisconsin
show allGardeners' Notes:
Rating | Content |
---|---|
Positive | On Apr 25, 2022, JennysGarden_TN from Collierville, TN wrote: It is blooming now in my zone 7b garden. Love the fragrance! |
Positive | On Jul 21, 2017, Happyday2 wrote: Small but reliable bloomer, many buds, smells like cotton candy. |
Neutral | On May 15, 2015, NJIrisGuy from Toms River, NJ (Zone 7a) wrote: I found this Iris to grow rapidly and was not fussy about where it was planted. My only issue with this iris was that the flowers were MASSIVE! I'm not a fan of overly large iris flowers, and 'Immortality' was the largest flowered iris of any iris in my garden. I tend to favor the Historic Iris varieties which are a little more 'graceful' in appearance. |
Neutral | On Oct 22, 2014, vossner from East Texas, Even though it is rated as suitable for growing in z9, it did not do well for me. It was planted in well amended soil, partial sun, access to sprinkler. After 5 yrs or so, I had a nice clump of foliage but no blooms. I never fertilized . However. I planted a presently unidentified bearded iris which bloomed that same season... |
Positive | On May 23, 2014, WarwickDave from Warwick, RI wrote: I have had the stunning and shimmering white Immortality in my garden for years. Once the clumps are established, generally after a year or two, they re-bloom with absolute consistency for me in late September/early October, sending up new stalks until freezing weather. The only other iris I have that is as reliable a re-bloomer as Immortality is 'Baby Blessed', a yellow dwarf iris that was also given to me years ago. Highly recommended. |
Positive | On Dec 29, 2013, eolivas103 from Las Cruces, NM (Zone 8a) wrote: Planted Fall 2012 and did not see bloom until December of 2013. Very impressed though that it bloomed even after we had light snow in November and freezing temps |
Positive | On Jun 12, 2013, Sheltielovers13 from LITTLE SUAMICO, WI wrote: I love these large fragrant flowers that bloom twice for me every year. I did have 2 small groups that did not bloom this year, but I think that might be from my taking babies from them too much. Not sure. Otherwise, tons of flowers twice a year. |
Positive | On Jun 5, 2013, Irissimo from London/Kent , This was worth waiting for ! |
Positive | On Oct 23, 2012, violet_virginia from Richmond, VA wrote: I love love Immortality Iris, I bought it in Ebay, I know some sellers may have mislabelled the plant they sell but I really dont mind as I am bound to forget all these names just like all the plants I bought. "From our yard and too over grown. I am selling what I have cleared. We are not experts cutting these roots but my kids wants extra money, they will box it and send you extras. I researched this and believe its **Immortality**. You wont be dissappointed if you like iris all the time. Buy more and save on large flat rate box shipping"...that was his winning ad. I almost wished I didnt bid beacause I **do not like white flowers**, but I did because we needed a contrast to this yellow iris we have the blooms from spring until some heavy snows snaps the flower stems. When my husband op... read more |
Positive | On Sep 8, 2012, eukofios from Vancouver, WA (Zone 8b) wrote: I grow Immortality in Vancouver WA zone 8. It increases well and doesnt have problems. Bloom is nice size. Not too big which is good for me. I think it rebloomed once for me in the past 7 years. It always puts on a great show in May. |
Positive | On Oct 23, 2010, CreativeCountry from Petersburg, IN wrote: Probably my favorite iris. It has rebloomed for me on even small new divisions. It is beautiful with roses and has a wonderful scent. If you are scared to pay the money for RB iris, this is the one to try. I have several pictures of it blooming on my blog. |
Positive | On May 21, 2010, reefgeek from Island Lake, IL (Zone 5b) wrote: I planted two of these the beginning of May this year. One already has a beautiful bloom now. It has a faint purple tint. |
Neutral | On May 12, 2010, Kestris from Roanoke, VA (Zone 7b) wrote: Immortality has bloomed once in the 3 years I've had it. The blooms were gorgeous, large and numerous. |
Positive | On May 19, 2009, emily_n from Williamston, MI wrote: This iris is a reliable rebloomer for me, and a robust grower. I love its small scale (by iris standards). It reblooms in early September. However, the fall blooms end up covered with Japanese beetles. |
Positive | On Mar 25, 2009, gypsysparrow from Colton, CA wrote: Planted last spring, '08, and is blooming now, March 09. Surprised because it only gets 5 hours of sun! |
Neutral | On Jan 28, 2009, Mainer from Durham, ME (Zone 3a) wrote: Had this plant before Linda gave me a piece and it died because it insisted on blooming in Oct not in the spring. I placed Linda's piece in a more sheltered spot and it bloomed in the spring and did not in Oct so it might live long enough to make babies. Lovely white flower and smells wonderful. |
Positive | On Sep 1, 2007, amazar from Eau Claire, WI (Zone 4a) wrote: Planted fall 2004. Rebloomed in 2006 and 2007 - in zone 4a. Amazing. |
Neutral | On May 24, 2007, Joan from Belfield, ND (Zone 4a) wrote: Awards: Honorable Mention 1986; Award of Merit 1990 |
Positive | On May 17, 2007, mypetalpatch from Cloverdale, CA (Zone 9b) wrote: Fantasic grower with great increase. Mine's in a lot of shade and still sends up multiple scapes and reblooms. Earlier and shorter than the majority of Talls - first bloom is right after the border beardeds. Flower is not impressive in size or form - a grey/green white, but would do well in landscape situations in large clumps. Haven't gotten mine to set a pod and no success as a pollen parent yet either -hmm. |
Positive | On Jul 29, 2006, MikenMyrtle from Myrtle Beach, SC wrote: Immortality grows in a bed beside a building where I work. It reblooms in July and August and is often in full flower in 95 degree plus heat. |
Positive | On May 19, 2006, Cybrczch from Lincoln, NE (Zone 5b) wrote: Grows quickly, have to divide every other year (but then I get to share the wealth with friends). Because of this I've only had it rebloom once for me in the past 5 years. Blooms early to mid-May in Nebraska (zone 5), before my other tall bearded iris. |
Positive | On Mar 14, 2006, Margiempv from Oro Valley, AZ (Zone 9a) wrote: Great grower! Reblooms in fall and winter here. Dependable rebloomer too. |
Positive | On Jun 10, 2005, MaryE from Baker City, OR (Zone 5b) wrote: I got a small tuber last fall, have a small plant this year but the bloom is huge! I'm looking forward to seeing it bloom again in the fall. Next year the plant will be larger. |
Neutral | On Jun 9, 2005, 33libra from Winnipeg, MB (Zone 3a) wrote: Lots of blooms and GORGEOUS in Zone 3. |
Positive | On May 19, 2005, smiln32 from Oklahoma City, OK (Zone 7a) wrote: Beautiful and vigorous - pure white blooms with a yellowish beard. |
Positive | On Mar 14, 2005, doss from Stanford, CA (Zone 9b) wrote: Tall Bearded Iris 'Immortality' at 29" is a shorter Tall Bearded. It is a mid season bloomer and blooms again in the summer through fall. One of it's great points is that it reblooms pretty consistently across the US. It has been awarded The American Iris Society Honorable Mention '86; and the Award of Merit '90. |
Positive | On Jan 29, 2005, SudieGoodman from Broaddus, TX (Zone 8b) wrote: I searched a long time before finding the Tall Bearded Iris 'Immortality'. I recently planted same about 6" deep...in soil with a pH of I have mulched with pine straw. I'm so excited about getting Spring and then September blooms! I'm in Zone 8b with mild winters. |
Positive | On May 30, 2004, Wandasflowers from Cedar Rapids, IA (Zone 5a) wrote: I'm very pleased with the spring blooms & was delighted to find it blooming again in September in Iowa! |