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Japanese Water Iris, Japanese Flag, Russian Iris 'Royal One'

Iris

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Iris by Joan
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Family
Iridaceae (eye-rid-AY-see-ee)
Info
Genus
Iris (EYE-ris)
Info
Synonym
Hybridized
Ackerman
Registered or introduced
1989
Height
36-48 in. (90-120 cm)
Spacing
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
Green
Lavender
Medium Purple
Foliage
Herbaceous
Class
Japanese (JI)
Bloom Time
Midseason (M)
Other Details
Other details

Unknown - Tell us

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
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Awards (if applicable)

Unknown - Tell us

Foliage Color

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
Where to Grow

Unknown - Tell us

Regional
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kivariver
Ipswich, MA (Zone 5b) | February 2005 | neutral

Ackerman, William L. (Reg. 1989) Midseason. 3-fall.

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