Name: Catmint/Robin PNW WA half hour south of Olym (Zone 8a)
I see a lot of these germinating in my backyard, and have been assuming they are from a neighbor's tree. Anyone have any idea what it might be? (I am actually hoping for a mulberry...)
"One of the pleasures of being a gardener comes from the enjoyment you get looking at other people's yards”
― Thalassa Cruso
It looks like it could possibly be an Acer seedling to me too. I believe Red Maple (Acer rubrum) is a Maryland native but there may be other species that are native to the area as well. Do you know if there are Maple's in your neighbors yard or nearby vicinity?