Home / Guides / Plant Files / Iridaceae

Japanese Water Iris, Japanese Flag, Russian Iris 'Pleasant Sandman'

Iris ensata

Upload Image Print Version

Family

Iridaceae (eye-rid-AY-see-ee)

Info

Genus

Iris (EYE-ris)

Info

Species

ensata (en-SA-tuh)

Info

Synonym

Iris kaempferi

Hybridized

Harris

Registered or introduced

1997

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

Handling plant may cause skin irritation or allergic reaction

Bloom Color

Pale Yellow

Blue-Violet

White/Near White

Foliage

Herbaceous

This plant is resistant to deer

Smooth

Class

Japanese (JI)

Bloom Time

Late (La)

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

5.1 to 5.5 (strongly acidic)

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

Patent Information

Non-patented

Awards (if applicable)

Honorable Mention

Foliage Color

Blue-Green

Bloom Characteristics

This plant is attractive to bees, butterflies and/or birds

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

Can be grown as an annual

Regional

This plant is said to grow outdoors in the following regions:

Vancouver, Washington

View all varieties of Iris

View this plant in a garden

0 members have or want this plant for trade

Add to your want list
Add to your have to trade list

Gardener's Notes:

Post Comment

positive

neutral

negative

Sort By:

Post Comment

Sort By:

Joan

Belfield, ND (Zone 4a) | October 2008 | neutral

Awards: Honorable Mention 2002

Popular Plants

SEE ALL

Featured

PLANT FILES

Lagerstroemia'Catawba'

(Lagerstroemia indica)

BUG FILES

Pyralid Moth

(Vinicia gypsopa)

BIRD FILES

Great Blue Heron

(Ardea herodias)

Featured

PLANT FILES

Lagerstroemia'Catawba'

(Lagerstroemia indica)

BUG FILES

Pyralid Moth

(Vinicia gypsopa)

BIRD FILES

Great Blue Heron

(Ardea herodias)

Japanese Water Iris, Japanese Flag, Russian Iris 'Pleasant Sandman'

Iris ensata

Featured Videos

Gardener's Notes:

Get to Know Dave's Garden

Follow Dave's Garden