[[It’s Lavender
I’m pretty sure it’s the cultivar Hidcote]]
It’s not Hidcote , the leaves are the wrong shape but the flower looks like it. It’s probably one of the hybrids .
You can grow more plants though exactly like it by takig some cuttings .
That’s how the hybrids are cultivated. It’s probably the easiest way of getting the same exact plant. It’s easy to take cuttings too.