Q.saving iris rhizomes
How long can I leave iris rhizomes out of the ground before planting them? I was able to dig out a bunch of irises but wanted to give some to my friend and plant others on another property. I am not sure if I will be able to do so before Wednesday or Friday. Is there a way to save them for a few days? What is the best way to protect them until planting?

Here is an excellent link for you with more information.
Cool dry location is important.
https://www.gardeningknowhow.com/ornamental/bulbs/iris/storing-iris-rhizomes.htm
https://www.gardeningknowhow.com/ornamental/bulbs/iris/divide-bearded-irises.htm
https://www.gardeningknowhow.com/ornamental/bulbs/iris/dividing-transplanting-iris.htm