Dutch Iris
Iris x hollandica

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: x hollandica (hol-LAN-dee-kuh) (Info)
» View all varieties of Iris

Class:

Species

Height:

18-24 in. (45-60 cm)

Spacing:

3-6 in. (7-15 cm)

Hardiness:

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

Sun to Partial Shade

Danger:

Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Gold (Yellow-Orange)

Pale Yellow

Bright Yellow

Light Blue

Medium Blue

Dark Blue

Blue-Violet

Violet/Lavender

Purple

Maroon (Purple-Brown)

White/Near White

Bloom Time:

Midseason (M)

Late Midseason (MLa)

Foliage:

Herbaceous

Other details:

Average Water Needs; Water regularly; do not overwater

Flowers are good for cutting

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:

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

Awards (if applicable):

Unknown - Tell us

Regional

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

Auburn, Alabama

Mobile, Alabama (2 reports)

Apache Junction, Arizona

Tucson, Arizona

Fayetteville, Arkansas

Sorrento, British Columbia

Canoga Park, California

Fremont, California

Glen Avon, California

Oak View, California

Sacramento, California

San Bernardino, California

San Leandro, California

Woodland, California

Old Saybrook, Connecticut

Stamford, Connecticut

Washington, District Of Columbia

Canton, Georgia

Cumming, Georgia

Hahira, Georgia

Pine Mountain, Georgia

Winterville, Georgia

Kuna, Idaho

Mount Prospect, Illinois

Salem, Illinois

Pella, Iowa

Urbandale, Iowa

Olathe, Kansas

Barbourville, Kentucky

Lexington, Kentucky

Baton Rouge, Louisiana

Crowley, Louisiana

Franklin, Louisiana

New Orleans, Louisiana

Beverly, Massachusetts

Florence, Mississippi

Henderson, Nevada

Metuchen, New Jersey

Port Chester, New York

Schenectady, New York

Lake Toxaway, North Carolina

Dayton, Ohio

Tulsa, Oklahoma

Gold Hill, Oregon

Portland, Oregon

Redmond, Oregon

Malvern, Pennsylvania

Wilkes Barre, Pennsylvania

Sumter, South Carolina

Mc Donald, Tennessee

Arlington, Texas

Copperas Cove, Texas

Irving, Texas

Powderly, Texas

Roanoke, Texas

San Antonio, Texas

Salt Lake City, Utah

South Jordan, Utah

Newport News, Virginia

Kalama, Washington

Menasha, Wisconsin

Kinnear, Wyoming

Riverton, Wyoming

show all

Gardeners' Notes:

8
positives
3
neutrals
1
negative
RatingContent
Negative

On Mar 11, 2015, coriaceous from ROSLINDALE, MA wrote:

I've never had much luck with these in Boston Z6a. They are very short-lived here (2 years at most) and often fail to flower or even survive their first winter. The summer-dormant "evergreen" foliage comes up in the fall and usually gets hammered by our winters.

I find the foliage is untidy and the habit gawky. I think in the border it's most often an eyesore, especially when it comes up blind. Perhaps it's best relegated to the cutting garden.

Positive

On Dec 8, 2011, Sandwichkatexan from Copperas Cove, TX wrote:

Every year I divide the patches and every year more and more . I love them they sailed through this 2011 Texas drought , and to my surprise have multiplied this year also they are coming up with force right now . I cant wait till march when they all bloom .Heat ,drought ,cold ,eager armadillos, nothing phases them they just happily naturalize in drifts wherever I plant the new bulbs .

Neutral

On Feb 21, 2011, RosemaryK from Lexington, MA (Zone 6a) wrote:

I have the cultivar 'Symphony' which is the same name as a bearded German iris. Mine is clearly the smaller Dutch iris. blooms are white and yellow.

Positive

On Mar 8, 2008, awahili from Pine Mountain, GA wrote:

This plant was a surprise for me. Having just moved in and having no idea of what was in the ground, I was delighted to see this beautiful 20-24 inch scape with three blooms. Each was approximately4.5-5.5 inches in diameter. Blossoms were classic in configuration and white color. This year I am adding 6 new purples and will be propagating the white. Very stately and graceful addition to my garden plan.

Positive

On Aug 10, 2007, Opoetree from Oak View, CA wrote:

We have the blue and yellow variety....so Dutch! There is a simple elegance to these flowers and we look forward to their presence every spring.

Positive

On Nov 24, 2006, tulipgarden from Pella, IA wrote:

I grew this plant for the first time in 2006. They all came up in the spring and were very showy. Because of the early dry summer they died off quickly. Then due to a mild fall and lots of moisture they have sprouted (November 2006). Use caution when planting to ensure they are at least 8 inches deep to help keep them from sprouting to early.

Neutral

On May 2, 2006, JenniferSM from Woodland, CA wrote:

There is no doubt, this is a beautiful flower. But, it only lasts about five days until it wilts, and "poof" its gone! Seems like such a short climax after having sent up its green "leaves" almost for three months prior, which aren't particularly attractive.

Positive

On Sep 22, 2005, Scorpioangel from Gold Hill, OR (Zone 7a) wrote:

Great plant to use for fill among later blooming perennials since it grows up and not out. a big plus for me is that deer leave them alone.

Neutral

On Jun 6, 2005, PurplePansies from Deal, NJ (Zone 7a) wrote:

Dutch iris is much smaller than bearded iris and much bigger than dwarf irises (blossom size that is) than dwarf irises like iris reticultata. The most eye catching varieties seem to be the blues and violets with yellow streaks or flashes of an eye that jump out at you. These have proved fairly easy to grow in well drained soil and full sun. No special care required. Minimal winter mulch. On a down side these are NOT FRAGRANT IRISES! Boo hoo I love the fragrant ones..... :)

Positive

On Oct 5, 2004, Kelli from L.A. (Canoga Park), CA (Zone 10a) wrote:

These pretty much naturalize here (zone 10).

Positive

On Apr 8, 2004, gcaffee from Roanoke, TX wrote:

I have a bed of blue and white Dutch iris that bloom each year. The blooms seem to pull the stems over however. Is this normal? This year several of the blues came on with two blooms per stem. Very nice. I wonder if I need to feed them or stake them up? This is the 3rd year for this bed and I am pleased with the result.

Positive

On Apr 17, 2003, jcborshard from Plano, TX wrote:

Anything which thrives despite Texas heat, drought, black clay soil, and neglect earns a positive+ rating here. The blade of the foliage rolls itself into a tube, giving a round appearance like large chives. The purple blooms appear in April. This fourth year some stalks have two. Height is 18" to 24". Bulbs were bought at Home Depot in 1999, but the picture on the package promised blue flowers. Oh, well!