Plant in cool full sun (coast gardens) to part sun with regular irrigation. Cold hardy to 5 degrees F. This plant comes from Dalmatian Mountains in Croatia into Hercegovina. Its specific epithet honors Austrian naturalist Franz von Portenschlag-Leydermayer (1772-1822). It has been known as Campanula muralis and commonly called Adria Bellflower of Wall Bellflower, since it is often seen growing on walls. This species was awarded the Royal Horticultural Society Award of Garden Merit in 1993. We have grown this great groundcover since first getting it in 1981 from Bill Dayka who had Dayka Nursery, a small and very neat wholesale nursery in Santa Barbara. 

The information displayed on this page about Campanula portenschlagiana is based on our research conducted about this plant from books in our nursery library as well as from information that is provided by reliable online resources. We also have included our own observations made about it as it grew in the nursery gardens and other gardens visited, as well how the crops of this plant performed in the containers when we had them in our nursery field. We also include comments received from others and welcome hearing from anyone who has information about this plant, particularly if it includes cultural information aiding others to better grow it.