blue `serbian bellflower` - campanula poscharskyana

arboretum bell bellflower bloom blossom blue bluebell bosnia botanical botany campanula campanulaceae cervicaria croatia cultivar dalmatia dalmatian decorative flora flower gallen garden glockenblume green hare harebell houseplant leaf natural nature ornamental persicifolia petal plant portenschlagiana poscharskyana purple saint serbia serbian sharsmithiae summer swiss switzerland trailing violet yugoslavia