Blue Waterfall Bellflower
Campanula poscharskyana ‘Blue Waterfall’
Serbian Bellflower
A charming spreading perennial that forms a low mound of green foliage covered in open blue-purple bell-shaped flowers. Blooming from late spring through summer, the cascading growth habit makes it ideal for softening the edges of garden beds, walls, and containers. Its long-lasting blooms bring color and attract hummingbirds to the garden.
Hardiness Zone 4–7. Grows about 8–12 inches tall and 18–24 inches wide. Performs best in full sun to partial sun with well-drained soil. Heat and drought tolerant once established, it works beautifully in rock gardens, borders, containers, and along pathways.