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PlantFiles: Japanese Water Iris, Japanese Flag, Russian Iris
Iris ensata 'Sapphire Star'

 
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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: ensata (en-SA-tuh) (Info)
Cultivar: Sapphire Star
Hybridized by W. Marx; Year of Registration or Introduction: 1983

Synonym:Iris kaempferi

» View all varieties of Iris

Class:
Japanese (JA)

Height:
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:
Gold (Yellow-Orange)
Violet/Lavender
White/Near White

Bloom Time:
Midseason (M)

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):
Unknown - Tell us

Click thumbnail
to view:

By kivariver
Thumbnail #1 of Iris ensata by kivariver

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

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

(W. Marx) 1983. 3-falls. Midseason. Diamond dusted - very pretty.



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