Q.Is An Alder Tree Ok Near My House?
Two alder trees started growing in a pot in my backyard this spring and I’m beginning to like them and thinking I could plant them in the ground in the same spot. Is this going to be bad for the foundation directly next to it? My yard is really small, so there isn’t much room to move it away, but I could go about a foot away from the concrete.

Certified GKH Gardening Expert
I'm afraid that it would be a very bad idea. You could try growing it in container, though:
https://www.gardeningknowhow.com/ornamental/trees/tgen/growing-trees-in-containers.htm