#2 tomatillo

1 and 3 seems to be some type of curcubit, a melon/cucumber of some sort

I shall check for embryo sprouts- my father in law also thought Brussels sprouts but my mother in law thought plain cabbage. So I figured I would ask.

The PO has a extensive garden but it is just so overgrown right now.....

Not cabbage. Collards an outside possibility but I'd still say Brussels sprouts with those spoon shaped leaves.

I agree with all the IDs above.

The tomatillo may worth harvesting when ripe, and may reseed if left alone, but the others might not be worth trying to save. (The brussels sprouts may produce and are quite frost-hardy, but you'd have to like Brussels sprouts . . .) None will be reliably hardy in 5b except perhaps the Brussels sprouts, but they would be going to seed next year and not producing. So if you are interested in a veggie garden next year, you may want to remove as much of the weedy stuff this fall as you have time (a bagging mower may remove some of the weed seeds along with the plants), mulch well wherever possible next spring to reduce the weeds getting started, and invest in a stirrup hoe for any areas you won't be mulching since that's the easiest way to remove young weeds quickly. If you won't be using it as a veggie garden next year, I'd again mow weeds with a bagging mower to remove what's there and then in mid-September plant grass since that's the best time to start grass in zone 5.

Thanks! I think we will be using it as a veggie garden next year. About a 1/4 is raspberries and I know there are tomatoes and pumpkins and some sort of squash.p The PO was a science teacher and loved her garden. She retired though and is off now being footloose and fansy free.