Quite a few years ago, I bought some bareroot seedlings of alder to add to our property. I planted a couple out in the yard (apparently they didn't make it)...and planted the majority in a decaying mulch pile. They did well there, and I intended to move them two years ago...and again last year. Today, I finally put two of the three or so into the landscaping. (I suspect at least one of them is two trees growing together.)
I believe I have two more potted elsewhere.
In the process of digging them up, I dug out a red oak that I put in as a germinating acorn. it looks to be about 4 years old--so, I dug another hole and added the oak to our developing woodland. :)