Growing Guide
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Bellflower, Clustered

Herbaceous Perennial Flower

Also known as Danesblood Bellflower
Campanula glomerata
Campanulaceae Family

Unique and attractive, Clustered Bellflower charms the garden with its upright stems of medium-green foliage, topped with dense, rounded heads of bell-like purple, blue or white blooms.

Site Characteristics
  • full sun
  • part shade
Prefers part shade in areas with hot summers.

Soil conditions:

  • requires damp soil
Prefers moist, alkaline soil. Spreads more rapidly in rich soils than in poorer soils.

Hardiness zones:

  • 3 to 8
Plant Traits

Lifecycle: perennial

Ease-of-care: easy

Height: 0.5 to 2 feet

Spread: 1 to 3 feet

Bloom time:

  • early summer
  • mid-summer

Flower color:

  • blue
  • violet
  • white

Foliage color:

  • medium green
  • dark green

Foliage texture: medium


  • spreading mass
  • upright

Shape in flower: flower stalks with flowers as cups

Blooms borne in rounded clusters at the top of the stems.

Special Considerations
Special characteristics:
  • aggressive - Spreads rapidly in moist soils, not aggressive in drier soils.
  • non-invasive
  • not native to North America - Native from Europe to Asia Minor, western, central and south Asia.
Growing Information
How to plant:

Propagate by division or separation - Divide in the spring or fall as desired or needed.

Maintenance and care:
Remove faded blooms to extend blooming. Cut plants back to basal leaves when blooming has finished and foliage declines. Allow foliage to remain for the winter, clean up in spring.

More growing information: How to Grow Perennials

Slugs and snails
Vine weevils
Spider mites
Powdery mildew
Septoria leaf spot
Ramularia leaf spot
Southern blight
'Acaulis': 6" tall plants with violet blue blooms.

'Alba': 2' tall plants with pure white blooms.

'Crown of Snow' ('Schneekrone'): 1 1/2' tall plants with pure white blooms.

'Joan Elliott': 1 1/2' tall plants with dark violet blue blooms in early summer.

‘Purple Pixie’ 1 1/2' tall plants with lavender-blue flowers. Does not spread.

'Speciosa': 2' tall plants with dark purple blooms.

'Superba': 2' tall plants with violet-purple blooms.