There was a thread a while ago where the OP had a plant which was
identified as isotoma aka laurentia. I was surprised that the OP said
hers was scented, as mine was not.
I have been browsing thro' the T&M plants catalogue and found
laurentia marked "scented". I have ordered some so thanks to the OP
(was it Klara?) who offered seeds but I'll start with plants.

Pam in Bristol