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Intermediate Bearded Iris 'Az Ap'


Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Az Ap
Hybridized by Ensminger
Registered or introduced: 1979
» View all varieties of Iris


Intermediate Bearded (IB)


18-24 in. (45-60 cm)


12-15 in. (30-38 cm)

15-18 in. (38-45 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)

Sun Exposure:

Full Sun


Parts of plant are poisonous if ingested

Bloom Color:

Light Blue

Medium Blue

Bloom Time:

Early (E)

Early midseason (EM)

Midseason (M)

Late Midseason (MLa)

Late (La)



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:

Unknown - Tell us

Propagation Methods:

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

Seed Collecting:

Bag seedheads to capture ripening seed

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

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Awards (if applicable):

Unknown - Tell us

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

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

Durham, Maine

Hagerstown, Maryland

Deer River, Minnesota

Kansas City, Missouri

Cut Bank, Montana

Coshocton, Ohio

Ponca City, Oklahoma

North Scituate, Rhode Island

Augusta, Wisconsin

show all

Gardeners' Notes:


On Jun 7, 2011, rebloomnut from Cut Bank, MT (Zone 3a) wrote:

I have had this Iris for 2 years and it is finally going to bloom with 3 stalks on it. Although slow to settle in , I have it planted in the shallowest soil, hard due to clay and rock, sometimes completely bare of snowcover in the last 2 very harsh winters and then buried under feet of snow and later sat in pools of rain water.
It is tough as nails and I hope to have it for many years to come.


On Dec 21, 2005, Joan from Belfield, ND (Zone 4a) wrote:

Awards: American Iris Society Honorable Mention '82, Award of Merit '84, Hans and Jacob Sass Medal '87


On Oct 21, 2005, laurief from Deer River, MN (Zone 3b) wrote:

Intermediate beardeds (IBs) generally do quite well in my growing conditions. This northern MN zone 3b climate inflicts severe, extended cold during the winter months, often with little snow cover for insulation. The summer growing season is short with temps that sometimes exceed 90 degrees F. My soil is very heavy, compacted clay with a slightly acid pH, though I grow my irises in well-amended, raised beds or windrows with improved friability and drainage. A large local deer population frequently tramples and sometimes grazes on my irises in early spring and late fall. Iris borers are present but managed successfully with a granular systemic grub control product. Weeds are abundant and only occasionally beaten back by an admittedly lazy gardener (yours truly). Fertilization is inconsisten... read more


On Jun 18, 2005, Elizabethtown from Hagerstown, MD (Zone 6a) wrote:

The iris appeared mottled in my garden this year but that could be due to the weather fluxes as a few irises produced color breaks that do not have the tendency to do so. This is an awesome iris.


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

I've been very pleased by the size and quantities of the blooms.


On Apr 30, 2004, KDePetrillo from North Scituate, RI (Zone 6a) wrote:

This is a really sweet plant, and strudy to boot! I've had it about 12 years and it comes back strong every Spring, even when it's spent 4 or 5 days totally underwater (and irises DON'T like too much water!). It's a beautiful blue.


On Apr 29, 2004, NellPercy from Ponca City, OK wrote:

This little darling blooms and blooms and multipies well. It is about 12" to 15" tall. In my garden it is a clear blue but I have see pictures of it that were streaked and/or spotted.