Campanula pyramidalis question
Morning everyone. I have a few campanula plants dotted around in pots, one of which seems particularly happy. Loads of lush growth and at least 10 main spurs.
I was looking up whether or not it was a good idea to split it or thin it out, then everything I read said it was “a relatively short lived perennial, best grown from seed each year…..” mine has now been going for 4 years….. is this then unusual? What exactly is the “relatively” here? Thanks for your thoughts.
Marne la vallée, basically just outside Paris 🇫🇷, but definitely Scottish at heart.