Bellflower is the common name for plants belonging to the genus Campanula, which contains over 400 species of annuals, biennials, and perennials. Both their common name and their scientific name (derived from the Latin word for “little bell”) reference their signature bell-shaped, cup-shaped, or star-shaped blooms. They are highly popular in cottage gardens, borders, and rockeries for their charming appearance and ability to attract vital pollinators like bees. [1, 2, 3, 4, 5]

Core Characteristics

• Appearance: They range from tiny, mat-forming alpine groundcovers (5 cm tall) to striking, upright meadow varieties reaching up to 2 metres. [1, 2]
• Colours: While most famously known for vibrant shades of lavender, violet, and deep blue, they also bloom in pink and pure white. [1, 2]
• Growing Conditions: According to the RHS Plant Guide, they generally thrive in full sun or partial shade and prefer moist, well-drained soil. They are resilient, fully hardy, and low-maintenance plants. [1, 2, 3]

Popular Varieties

• Canterbury Bells (Campanula medium): A traditional biennial favourite featuring dramatic, highly structured “cup-and-saucer” pastel flowers.
• Dalmatian or Wall Bellflower (Campanula portenschlagiana): A fast-spreading, low-growing evergreen perennial that forms a dense mat of violet-blue flowers—perfect for spilling down walls, stone pathways, or rock gardens.
• Peach-Leaved Bellflower (Campanula persicifolia): An elegant perennial producing tall, upright spires with delicate outward-facing cup blooms, highly favored for wildflower schemes and home bouquets.
• Harebell (Campanula rotundifolia): Known in England as the harebell and Scotland as the bluebell, this variety features paper-thin, dainty blue bells balancing on very slender stems. [1, 2, 3, 4, 5, 6, 7]