Tall Bearded Iris 'Sultan's Palace'


Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Sultan's Palace
Hybridized by Schreiner
Registered or introduced: 1977
» View all varieties of Iris


Tall Bearded (TB)


24-36 in. (60-90 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)

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


Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Maroon (Purple-Brown)

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 good for cutting

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:


Cedar Rapids, Iowa

Anacoco, Louisiana

Clawson, Michigan

Minnetonka, Minnesota

Brunswick, Missouri

Lincoln, New Hampshire

Roswell, New Mexico

Belfield, North Dakota

Felicity, Ohio

Lawton, Oklahoma

Ponca City, Oklahoma

Meshoppen, Pennsylvania

Pittsburgh, Pennsylvania

Pickens, South Carolina

Greeneville, Tennessee

show all

Gardeners' Notes:


On Jun 19, 2013, Irissimo from London/Kent
United Kingdom wrote:

Another amazing Iris from Schreiners welcomed me with its lovely splash of colour for the first time this summer .
Sultans Palace is widely grown commercially in Europe and often offered as part of deal .
It has a wonderful flower shape and strong upright growth .


On Sep 25, 2010, RobertWM from Clawson, MI wrote:

Like all the other comments say, it's a tough, dependable grower and consistent bloomer for me too. Has a much redder effect in the yard than many newer reds. I would advise everyone to buy it from a reliable source, like Schreiner's, who still carries this and small quantities of many older iris not listed in their catalog. I first bought a package of what was supposed to be "Sultan's Palace" from a now defunct big box store and had four different, older, weedy looking reds show up. I then bought it directly from Schreiner's and have been pleased ever since.


On Jul 16, 2009, PinetopPlanter from Auburn Four Corners, PA (Zone 5a) wrote:

An excellent workhorse iris. Grows and blooms with vigor. Stems are just a little short, but the plant more than makes up for this in the quantity and color of the bloom. Rich, deep red/maroon (the beard is the same color) with golden hafts and a beautful color pattern when looking top down into the bloom.

This one has persisted despite neglect, planting it amongst weeds, etc. Makes a really nice addition to an iris garden.


On Mar 22, 2009, hespiris from Kingston, NY (Zone 5b) wrote:

Description of Sultan's Palace Schreiner's 1977 M 34"
Tailored rich maroon-red self; F. velvety and slightly ruffled; self beard.

Like the cultivor Spartan, the beard should be the same color as the bloom. Too many imposters sold under this name.


On Jun 15, 2004, mebacat from Minnetonka, MN wrote:

This plant has been in the garden since 1991. It has been dug and dragged all over. Forgotten, ignored, through drought and flood and it still survives and multiplies. Naturally it does do better with attention and although it is not among my favorite colors it adds a depth missing with some of the others--it's family!


On May 30, 2004, Wandasflowers from Cedar Rapids, IA (Zone 5a) wrote:

Rich red blooms on stalks that stand up well to the wind & rain.


On Jun 20, 2003, NellPercy from Ponca City, OK wrote:

Not terribly fancy but a truly beautiful color. Jfrizzell's photo gives a good idea. Grows, blooms and multiplies well.