Had a look, nothing exciting today.

My wife is way into Craigslist lately.
Yesterday we bought a broken hot tub/spa. Hmmm...not sure if it was a good deal even if nearly free.
Intrigued by your thread, I did a quick search and sure enough, there are people giving away plants that are over growing their yards.
Here is a copy and paste of an example from someone with irises that needed thinning, with the update in ALL CAPS at the top to give you a sense of the response the poster got...

DUE TO THE OVERWHELMING RESPONSE TO THIS AD I CAN NOT HELP EVERYONE.
I HAVE BEEN HIT WITH SO MANY REQUEST THAT I CAN HELP EVERYONE. I AM SORRY.
THE WEATHER HAS NOT ALLOWED ME TO DIG UP THE FLOWERS SO NO ONE IS GETTING ANYTHING UNTIL IT CLEARS UP.
I WILL NOT TRAVEL TO MET ANYONE WITH THE FREE ITEMS SO PLEASE DO NOT ASK ME TO ANYMORE.

I have numerous Iris plants and need to thin them out.
They are a very large white Iris.
The Iris is a very hardy plant that will grow almost anywhere and needs no extra attention.

I will wait to pull them until you and I can get together but they are fine just waiting in a paper bag if needed.

after the weather clears

It sure is a good way to find stuff if your patient. I've seen some real nice plant material on there over the years.

Bill