Japanese Iris (Iris ensata 'O-Ka-San') in the Irises Database

Common names:
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Data specific to Irises (Edit)
Hybridizer: Barber
Year Of Registration: 1935
Year Of Introduction (May Differ From Registry): not introduced
Classification: Japanese (Ensata)

General Plant Information (Edit)
Life cycle: Perennial
Flowers: Showy

Japanese IrisesJapanese Irises
April 14, 2013

The cultivation of Iris ensata was first noted in literature more than five hundred years ago in Japan. Native to eastern China, Siberia, Korea, and throughout Japan, they are found growing in damp areas near streams, ponds, lakes, and marshes. The selective breeding of the species that commenced in the 1800s produced the foundation of the modern Japanese iris. Colors and color patterns have been greatly enhanced over the years.

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Discussion Threads about this plant
Thread Title Last Reply Replies
IRIS DARDANUS question by cwalke Nov 17, 2019 7:09 AM 4
Name Please by RedRedCaz Nov 5, 2019 1:16 AM 16
Would love to see photos of your "black" iris! by cinvasko Sep 28, 2019 10:11 AM 14
TB Adoree by cinvasko Sep 7, 2019 2:15 PM 13
TB iris spacing in temporary beds? by cinvasko Oct 14, 2019 6:35 PM 26
I need help, lots of questions by butterandjam Sep 5, 2019 11:39 PM 15
Mid-America Surplus Sale by cbunny41 Sep 23, 2019 10:47 AM 105
On the hunt for iris sibirica species by dana Aug 16, 2019 12:17 PM 4
My Enchanted Garden 2019 by Dachsylady86 Oct 6, 2019 6:56 PM 444
Preparing Iris Beds by AndreaD Aug 4, 2019 7:34 PM 17
Something's not right about this by DaisyDo Jul 27, 2019 8:12 AM 48
Summary of my iris season 2019 by Tienito Jul 18, 2019 1:38 PM 4
Comparison of "Most Popular" Iris to "Most Relevant" by ShawnSteve Jul 25, 2019 6:01 AM 35
Need a recomendation by jo1836 Jul 9, 2019 3:18 PM 2
Mid-May at Mid-America by Lestv Sep 2, 2019 5:47 AM 87
Sowing, slightly immature, Iris seeds ? by ShawnSteve Jul 1, 2019 3:40 PM 9
What's the allure over Dusky Challenger? by lilpod13 Jul 1, 2019 8:20 PM 38
Disappearing Iris by Cinta Jun 30, 2019 6:16 PM 23
Bee pods...have you collected any? by evelyninthegarden Jun 27, 2019 6:35 PM 35
Do you have some favorite iris photos to share? by janwax Jun 27, 2019 3:45 PM 21

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