Add crisp white flower clusters to your garden with Campanula glomerata 'Angel Bells' (Clustered Bellflower 'Angel Bells'), a compact, clump-forming perennial that blooms in late spring to early summer. Its upward-facing, bell-shaped flowers gather in dense, rounded clusters on sturdy stems above a mound of green foliage, giving you strong color and structure in borders, rock gardens, and cottage-style plantings.
Site your plant in full sun to part shade. In cooler summers, it can take more sun; in hotter climates, afternoon shade helps keep it looking fresh. Provide average, well-drained soil and consistent moisture, especially during active growth and bloom. Deadhead spent flower stems to tidy the plant and encourage continued performance in the garden.
Campanula glomerata can spread over time by underground growth, so give it room or plan to divide clumps every few years to maintain a neat footprint. Division in fall or early spring also helps keep plants vigorous. This perennial pairs well with other sun-to-part-shade companions that enjoy similar moisture and drainage.
Once established, 'Angel Bells' offers dependable seasonal bloom with a manageable height that fits easily into mixed beds, edging, and mass plantings. Use it where you want bright, clean flower color that reads from a distance and a sturdy, upright habit that stays present after bloom.