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PlantFiles: Japanese Water Iris, Japanese Flag, Russian Iris
Iris ensata 'Ink on Ice'

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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: ensata (en-SA-tuh) (Info)
Cultivar: Ink on Ice
Hybridized by Aitken; Year of Registration or Introduction: 1994

» View all varieties of Iris

One member has or wants this plant for trade.

Class:
Japanese (JA)

Height:
24-36 in. (60-90 cm)

Spacing:
15-18 in. (38-45 cm)
18-24 in. (45-60 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

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

Bloom Color:
Chartreuse (Yellow-Green)
Purple
White/Near White
Cream/Tan

Bloom Time:
Early midseason (EM)

Foliage:
Herbaceous

Other details:
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

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

Click thumbnail
to view:

By Joan
Thumbnail #1 of Iris ensata by Joan

By Lilypon
Thumbnail #2 of Iris ensata by Lilypon

By EROCTUSE2
Thumbnail #3 of Iris ensata by EROCTUSE2

By pirl
Thumbnail #4 of Iris ensata by pirl

Profile:

No positives
1 neutral
1 negative

Gardeners' Notes:

RatingAuthorContent
Negative pirl On Oct 31, 2010, pirl from (Arlene) Southold, NY (Zone 7a) wrote:

Mine does not have the blue standards I see with other photos of it. Very disappointing.

Neutral Joan On Feb 3, 2008, Joan from Belfield, ND (Zone 4a) wrote:

Awards: Honorable Mention 1997; Award of Merit 1999

Regional...

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

Southold, New York



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