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?
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
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?
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.
How long does the Japanese Iris bloom
Japanese Iris are summer blooming plants. Flowers can last days to weeks, depending on varieties and weather conditions.
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
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.
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
I think you may be referring to a Japanese Iris.
They come in blues, purples and whites.
After the blooms fade and seed pods have formed when can I cut back the foliage on Japanese Iris?
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
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?
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: