Campanula

Sid , might be able to narrow it down to two selections, both are hybrids. Campanula 'Kent belle' or 'Campanula 'Sarastro' . I have both and really can't tell them apart. The Kent Belle seems to get alittle taller, but could just be that the soil is better where it's planted. Hope this helps....:-)

Sorastro has longer straighter flowers and a bit darker than this aswell.
I have both and that's how i tell mine apart !

Sounds like it must be 'Kent Belle' then - thanks you two! :-)