Unfortunately, I don't have any pix of this from last summer on this computer: perhaps I will transfer some here so I can post this...but this is the most abundant bluebell in the Altai which I was thrilled to see because I've grown Campanula sibirica for three decades at Denver Botanic Gardens, where it has spread everywhere (gently! not a weed). It is monocarpic, and thrives on rich, open soil where it can get quite large and sport dozens of flowers on and off all summer. We have had them pop up on occasion on sheer rock surfaces: they look all the more winsome this way.
This picture was taken several years ago. I love campanulas, and this is one you do not often see...
P.S., if you click on it, you can see a first year rosette at the center right of the picture.
I guess I'll have to try this one, if I can find it. I usually don't bother with monocarps but this is a beauty, and if it seeds around... And Camps are my favorite! I'll wonder if it can tolerate a humid lowland summer, though.
Something tells me this is a toughie!
Well worth growing.