campanula or is it?

in Plants
Last autumn i was given some root balls(without foliage and/or flowers) of "blue grape garden flower" that i identified as campanula glomerata from some phone pictures.
They started growing nicely (clumps of elongated jagged leaves on long petals growing from a single crown) survived the winter and are still presently growing foliage.


But one of them started looking differently from mid spring onwards. it had a prominent square stem with wide space between segments, now its started flowering(early for glomerata) and it looks to me as 100% campanula but which one?


If this one is glomerata then what will those clumps of long leaves grow into?
or are they campanulas at all?
They started growing nicely (clumps of elongated jagged leaves on long petals growing from a single crown) survived the winter and are still presently growing foliage.


But one of them started looking differently from mid spring onwards. it had a prominent square stem with wide space between segments, now its started flowering(early for glomerata) and it looks to me as 100% campanula but which one?


If this one is glomerata then what will those clumps of long leaves grow into?
Persicifolia?
or maybeLatiloba?
or are they campanulas at all?
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for the fag ends of the aristocracy.
Thanks to heavens but at least there are NO slugs or snails in my (roof)garden
(saying that, I'm sure there is one right now crawling up a drain pipe and laughing at my statement
Talking of pests: Black flies exploded across the city few days ago(attacked elderberry en mass, but little else) but i saw first two ladybugs today so that will hopefully end soon!