Campanula rotundifolia Bluebell of Scotland. 12" x 15" wide, (seed propagated). Wiry stems of nodding blue flowers grace this *native* wildflower. Blooms continuously from early summer on. This little charmer blends well into any perennial border! Campanulas grow best in good garden soils with watering. Very cold hardy perennials that are particularly useful to northern gardeners who have a limited palette to plant with. Zones 3-9.