Photo by Melody

PlantFiles: Tall Bearded Iris
Iris 'Holy Night'

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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Holy Night
Hybridized by Mohr; Year of Registration or Introduction: 1983

» View all varieties of Iris

3 members have or want this plant for trade.

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)

Sun Exposure:
Full Sun

Danger:
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Purple

Bloom Time:
Early (E)

Foliage:
Herbaceous

Other details:
Average Water Needs; Water regularly; do not overwater

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)
Allow cut surface to callous over before planting

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

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By Ruth_V
Thumbnail #1 of Iris  by Ruth_V

By laurief
Thumbnail #2 of Iris  by laurief

By laurief
Thumbnail #3 of Iris  by laurief

By laurief
Thumbnail #4 of Iris  by laurief

By sjlfinne
Thumbnail #5 of Iris  by sjlfinne

By elladan6
Thumbnail #6 of Iris  by elladan6

By TBGDN
Thumbnail #7 of Iris  by TBGDN

There are a total of 8 photos.
Click here to view them all!

Profile:

2 positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Joan On Dec 30, 2005, Joan from Belfield, ND (Zone 4a) wrote:

Awards: American Iris Society Honorable Mention 1987; Award of Merit 1991

Positive Margiempv On Nov 24, 2003, Margiempv from Oro Valley, AZ (Zone 9a) wrote:

This reblooming iris was rightly named. For me - - It blooms around Christmas. Good growth habits!

Margie

Positive laurief On Oct 21, 2003, laurief from Deer River, MN (Zone 3b) wrote:

Very few tall beardeds (TBs) can survive my growing conditions. This northern MN zone 3b climate inflicts severe, extended cold during the winter months, often with little snow cover for insulation. Summer temps can exceed 90 degrees F. My soil is very heavy, compacted clay with a slightly acid pH. 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 inconsistent, when provided at all. Most TBs here are growing with less than 6 hrs of sun per day, so growth and bloom are not what they could be under full sun conditions. I have lost hundreds of weaker TB cultivars over the years, so the few that have managed to survive are worthy of high praise.

HOLY NIGHT is a stunningly beautiful, dark rebloomer (rebloom reported in USDA zones 5-10). Though it is not as vigorous a grower as some of my other TBs, it is an absolutely reliable bloomer and tough as nails in the face of adverse growing and climatic conditions. I have this one growing in full sun and better soil than many of my other TBs. I highly recommend this cultivar.

Laurie

Regional...

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

Tucson, Arizona
Macy, Indiana
Deer River, Minnesota
Lawton, Oklahoma
Greeneville, Tennessee



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