I have one like the third photo; the seed packet said 'dwarf Morning Glory' but I don't think it is related to M. G. at all; I think Vic is right
2 is a Verbena I reckon.
1 I have never seen anything like that before
We need to see a photo, especially the leaves
I have been registered with tps for years; when companies ask me to do a survey, I tell them I charge £20 for this service
African Violet Centre (not a favourite Nursery for me) is near Terrington Saint Clement. My favourite Nursery is 500 metres away from there; Moat Road nursery.
....and don't forget to keep those Leylandii under control - they grow surprisingly quickly!
I would pull/dig gently to get the worst out. When some of them return, mask off the nearbye tree with plastic/cardboard and on a still day spray with weed killer. It may take 2 or3 weeks for this to kill the weeds.
Alan, here in the Fens (still Norfolk) it is warm and overcast and I am painting outside
P&W, that is lovely
Wonderful pics, BL and fidget