Don’t know the name but it is not a petunia and the plant could grow up into a bush.
I have three similar plants in pots in the garden which I have raised through cuttings I took while I walked around somewhere. The mother plant was full of blooms, mine produce only a few. My suspicion is that they do not like living in pots.
Thank you for your looks, comments and fav's.
Such a beauty and a lovely shot ! - perhaps it will flower more as the plant matures over the years , and perhaps would benefit from growing in the garden than in a pot !
Ian
My wife saw 7 birds at once . I try to but failed.