A mystery in the vegetable patch!

hello everyone I have a little mystery to solve and I would love some help!! We built some raised beds and created a vegetable garden (potatoes, cucumber, peppers, lettuce, butternut squash and of course tomatoes. We had tomatoes last year too and I used some of the soil they grew in to put in a raised bed and put my seedlings of mixed carnations in there. My butternut is in the lower tier of bed and has now taken over the box, garden, and is threatening the village!!

Now where I put the seedlings I seem to have very leggy tomato plants where none where planted!! Can they walk and replant themselves? !
My carnations are struggling underneath.

Are these tomato plants and are they worth transplanting somewhere or are they just the leaves that have self seeded (if that’s possible)? It’s all very strange to a newbie!! I’ve enclosed some photos.
Thanks for reading this and have a great day.

 

@FrenchBean
They are tomato plants. Tomato seeds are very durable and were probably in the soil you transferred. All it takes is one tomato splitting and spilling seed onto the soil and you have tomato plants next year. With me they generally don't appear early enough to give anything but green tomatoes.
Worth transplanting? Out of interest yes, but they will not be a named variety so what you get will be random.

 

Apparently, never proved it myself, but in the old days tomatoes grew very well at sewage outfalls.
The seeds survive most things including passing through the human body.

I often get seedlings on my allotment that are from last year.

 

Thank you for your reply, I shall move them to a sunny wall and see what happens! The butternut squash will be able to spread out even more

 

Oh no that’s incredible! We have an enclosed veg patch (wire fence) I’ll try to keep it in there!