Agree with William on black nightshade. When it gets flowers and berries we can give you a positive ID, which is cool because this one is edible! Leaves and fruit. believe it or not.
I also see some purslane growing in there, another edible.
If I'd had more time, I would have written a shorter letter. -T.S. Eliot such a short, tiny ad:
Looking for cold-climate growers to join a GOOF livestream panel (Missoula)