Top Questions About Japanese Iris Plants

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Questions About Japanese Iris Plants

Asked by
meanmom353 on
June 21, 2014

Q. Japanese iris blooms

Should the stems of Japanese iris blooms be cut following the bloom or should they remain to form a seed pod? I am unsure of what to do as far as pruning after my Japanese iris blooms. I generally allow it to form seed pods and don’t cut down the entire plant until early spring. It has bloomed beautifully for 8 years and I do divide the mother plant every other year. Is that all there is to it?

Answered by
theficuswrangler on
June 21, 2014
A.

Most people cut the flower stem after blooming to prevent the plant from expending energy on seed production. You don't need the seeds unless you want to go into iris hybridizing. Japanese iris are pretty easy, as you've found. Check out this article for more pointers: https://www.gardeningknowhow.com/ornamental/bulbs/iris/growing-japanese-iris-plants.htm

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Asked by
Anonymous on
May 31, 2017

Q. Why aren’t my Japanese irises not blooming

I have a large bed of Japanese irises with wonderful leaves – close to 5 feet tall, but maybe 3 blooms a year. They are planted in a very wet area, and get quite a lot of sun. Why don’t they bloom?

Answered by
Downtoearthdigs on
May 31, 2017
Certified Expert
A.

Lack of flowers could be soil ph issues or most likely your plants need to be divided.
Here is a link that will help you.

https://www.gardeningknowhow.com/ornamental/bulbs/iris/growing-japanese-iris-plants.htm

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Asked by
Anonymous on
February 14, 2018

Q. Japanese Iris

How long does the Japanese Iris bloom

Answered by
Downtoearthdigs on
February 14, 2018
Certified Expert
A.

Japanese Iris are summer blooming plants. Flowers can last days to weeks, depending on varieties and weather conditions.

https://www.gardeningknowhow.com/ornamental/bulbs/iris/growing-japanese-iris-plants.htm

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Asked by
betgor on
February 17, 2018
3109

Q. Japanese Iris

My Japanese Iris flowered beautifully the first two years. The next year it had a long thin stem with very small bead like ovals. I sought some advice and so I separated the bulbs and put them in single pots of earth, sand and diluted vinegar. I have kept them moist but the same thing happened. Could you please help as they are beautiful and one that I had never seen before. I am attaching 2 photos. One of the flower and the other of the thin stems. Looking forward to hearing from you. Elizabeth

Answered by
BushDoctor on
February 18, 2018
Certified Expert
A.

It looks like what happened is that a different plant has invaded your area. You may have propagated the invader by mistake. They have a growth pattern more similar to that of Daylillies rather than irises. Irises will grow from a layered rhizome resembling a hand with fingers. If what you planted was a true bulb, then this would be a different plant.

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Asked by
janesmart on
May 8, 2019

Q. please can you tell me the name of what seems to be a white Iris type flower, tall stem, grows in “clumps” in Charleston S>C> pu

blic flower beds, so can take the heat of a summer. it appears to have a flower of 4 petals, not Siberian iris
I would like to try and grow it here om South UK

Answered by
Downtoearthdigs on
May 8, 2019
Certified Expert
A.

I think you may be referring to a Japanese Iris.

They come in blues, purples and whites.

https://www.gardeningknowhow.com/ornamental/bulbs/iris/dividing-transplanting-iris.htm

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Asked by
Anonymous on
May 12, 2019

Q. Japanese Iris

After the blooms fade and seed pods have formed when can I cut back the foliage on Japanese Iris?

Answered by
Downtoearthdigs on
May 13, 2019
Certified Expert
A.

It is not necessary to cut back the foliage unless it is completely dead. If you would like to "rejuvenate" the crop after being over grown, then you can do this during the cold seasons, when they are not actively growing.

This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/bulbs/iris/growing-japanese-iris-plants.htm

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Asked by
Anonymous on
September 13, 2019

Q. i dug and dried some oriental iris rhizomes. Should they be planted this fall or wait til spring?

I live in the South part of Ohio and am giving oriental iris to my daughter who lives in the northern part – probably 6 zone. The rhizomes are dry and seem firm. Should she plant now or in the spring?

Answered by
GKH_Susan on
September 14, 2019
Certified Expert
A.

Irises are usually planted in late summer up to early fall. Much later and they might not have time to get established before freezing weather.

I'm not finding information on oriental iris and wonder if you mean Siberian or Dutch or Japanese iris? There are oriental lilies.

Here is more information on caring for iris bulbs:
https://www.gardeningknowhow.com/ornamental/bulbs/iris/dividing-transplanting-iris.htm

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