Blue Bellflower

Blue Bellflower is recorded as Campanula persicifolia, a clump-forming perennial with upright stems and open, bell-shaped flowers. The species profile supports blue flowers while also documenting natural variation from white to violet-blue, so size, color, and bloom timing can vary among plants and cultivars. See the [North Carolina Extension Gardener Plant Toolbox](https://plants.ces.ncsu.edu/plants/campanula-persicifolia/) and the [Royal Horticultural Society profile](https://www.rhs.org.uk/plants/2956/campanula-persicifolia/details). ## Garden Use Narrow basal leaves form a low rosette beneath flowering stems. The NC State profile gives a typical mature height of 1.5–3 feet and spread of 1–1.5 feet; the RHS records 0.5–1 metre tall and 0.1–0.5 metre wide. The plant suits perennial borders, cottage gardens, and cut-flower planting, where its upright stems rise above lower companions. ## Growing Conditions Plant in full sun or partial shade in average, medium-moisture soil that drains well. Flowers are usually carried in loose clusters during early to mid-summer, with local timing shaped by climate. NC State lists hardiness across USDA zones 3–7; the broader species profile should not be read as a promise that every cultivar performs identically throughout that range. Bees, butterflies, and hummingbirds may visit the flowers. ## Maintenance Deadhead after flowering to limit self-seeding and encourage a possible second flush. Divide established clumps every few years if they become crowded. Water during dry spells, particularly in warmer climates, and use afternoon shade where summers are hot.