Can anyone identify the mystery plants please?
The first one is Evening Primrose and the second one is a Malva. Both self seed well
Some people would refer to them as weeds, however if you like them and they are in a place you are happy to give them space, then they are not weeds - enjoy them. If you don't want them to spread about, deadhead them, and don't let them set seed. Otherwise, they will spread and come up in the most unlikely of places - which can be fun.
Thanks very much