What's your question? Ask

Now is the right time to dig and divide irises so round up the gang and get all irises dug up. Discard any diseased rhizomes and cut away insect damage on rhizomes. Wrap each in newspaper and store in a cool location till time to move. Once there, you can plant them if there is a place ready or wait till spring.

https://www.gardeningknowhow.com/ornamental/bulbs/iris/divide-bearded-irises.htm

https://www.gardeningknowhow.com/ornamental/bulbs/iris/storing-iris-rhizomes.htm

A good rule of thumb is to allow the leaves to stay on the bulb as long as possible and try to wait until they've begun to lose their color before trimming them. The rhizomes are fed by the leaves, so if you let the leaves stay until they fall over and wilt, you'll know the bulbs are getting nutrition from them. If you need to trim them before they turn yellow, it won't hurt them, but the longer you can leave them, the better.

https://www.gardeningknowhow.com/ornamental/bulbs/iris/iris-plant-care.htm

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

After reviewing photos and articles about kangaroo paws, here are the differences I noticed between the two:

Kangaroo paws grow from seed and form a dense clump of grasslike to swordlike foliage. It spreads through underground rhizomes.

The most common Iris grows from a rhizome and the rhizome should be visible above ground if planted correctly. New shoots come out of the rhizome.

The foliage is similar but not the growth habit. The kangaroo paws grow in clumps and arch outward. If you look closely at the iris "clump" they are just several rhizomes that have multiplied and the rhizomes are very visible.

I hope that helps. Of course you will know when they bloom!

https://www.gardeningknowhow.com/houseplants/kangaroo-paws/kangaroo-paws-houseplant.htm

It sounds like they need to be divided. This article should help:

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

No, you don't need to trim them again. In fact, the first trimming doesn't have to be done; some people just like the tidier look. If transplanting iris, it's helpful to trim them.

Here is more info about their care:

https://www.gardeningknowhow.com/ornamental/bulbs/iris/iris-plant-care.htm

According to my research, new plantlets form at the tips of the flower stalk. You can bend those over and affix the tip in a pot of soil (or on the ground) and it will root. They can also be grown by dividing the offsets or by seed. Here is more information:

https://www.uaex.edu/yard-garden/resource-library/plant-week/iris-walking-1-29-09.aspx

http://gardeningsolutions.ifas.ufl.edu/plants/ornamentals/walking-iris.html

http://edis.ifas.ufl.edu/fp426

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

https://www.gardeningknowhow.com/garden-how-to/propagation/propgen/dividing-plants.htm