Campanula alliariifolia

I am completely smitten with Campanula alliariifolia.  We grow it amongst the gorgeous lush green foliage of Hakonachloa, which sets of the creamy white of the the Campanula flowers beautifully.

Getting to 50cm high, the flowers borne all the way up the flower spikes, giving the plant a wonderful airy grace about it.  We have found that it can send up seedlings, but not in a way which becomes a nuisance.