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PlantFiles: Japanese Water Iris, Japanese Flag, Russian Iris
Iris ensata 'Beni Koshi'

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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: ensata (en-SA-tuh) (Info)
Cultivar: Beni Koshi
Hybridized by Makino; Year of Registration or Introduction: 1995

Synonym:Iris kaempferi

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One member has or wants this plant for trade.

Class:
Japanese (JA)

Height:
24-36 in. (60-90 cm)
36-48 in. (90-120 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

Bloom Color:
Rose/Mauve
Chartreuse (Yellow-Green)
White/Near White

Bloom Time:
Midseason (M)

Foliage:
Herbaceous
Smooth-Textured

Other details:
This plant is attractive to bees, butterflies and/or birds
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
This plant is resistant to deer
Suitable for growing in containers

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):
Unknown - Tell us

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By kivariver
Thumbnail #1 of Iris ensata by kivariver

Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Joan On Feb 20, 2007, Joan from Belfield, ND (Zone 4a) wrote:

Beni Koshi was introduced in Japan in 1973 by Zensaku Makino, but not registered until 1995 by Society for Japanese Irises.

Positive kivariver On Jan 30, 2005, kivariver from Ipswich, MA (Zone 5b) wrote:

Not sure if this is registered. 6 fall. Wide form with falls held upright. Falls are white with deep rose brushing at centers of falls fading to light brush stroked edges of petals. Pure white drooping style arms. Lime-yellow signals surrounded by a white halo bleeding into white rays.



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