Plant Catalog › Campanula poscharskyana (Serbian Bellflower) Image 1 of 1 Campanula poscharskyana (Serbian Bellflower) $0.00 Full Sun to Part ShadeBlooms: May & JuneH: 6-12" W: 12-18"Color: Blue Shades Add To Cart Added! Full Sun to Part ShadeBlooms: May & JuneH: 6-12" W: 12-18"Color: Blue Shades