Campanula, Double Earleaf Bellflower, Fairy Thimble 'Elizabeth Oliver'
Campanulacochlearifolia
Synonym
Campanula
cochleariifolia
Campanula
pusilla
Campanula
bellardii
It also seems to be hardy in zone 3... as many campanula species are.
I've had this cultivar for several years. In my garden, it is not nearly as invasive as the straight species. It blooms fairly late in ...Read More
From the research I've done on this plant there are descrepencies regarding hardiness zones. I guess I'll wait to see if mine comes back ...Read More