A Big Oopsie!

I really wonder where my head is at sometimes. I was out picking the peas (which are growing up and along the tomato cages) and I noticed what I thought was a an escaped tomato branch. Nope. It was a whole nother friggin' plant! I dug up marigold seedlings from one of my containers and planted them around the tomatoes. Turns out they were tomatoes, not marigolds. I have NO IDEA what type of tomatoes they are nor how the heck the seeds survived over the winter in my compost bin. I also planted some in the Victory Garden around the potatoes to keep away the beetles and haven't gone over there to check if they are indeed marigolds or wayward tomatoes.
The potatoes that were also growing in the bin are doing quite nicely in the yard now. However I noticed a few more in there when I was turning it the other day. No more potatoes, please.
Not so sure how well the melons are going to fare. The previous owner of Victory Garden home came by (he definitely does not own the house and was trespassing just as much as we are) and decided he didn't like the trellis so he took them down! Trampling all over the itsy bitsy melon seedlings in the process. I planted what I had left of the seeds about a week ago and still nothing. The melons were a stretch anyway. It was just something new to try.
Oh and last but not least - the caterpillar is an American Lady