Create Your Garden

Campanula glomerata ‘Superba’ (Clustered Bellflower)

Clustered Bellflower 'Superba', Bellflower 'Superba', Danesblood 'Superba'

AGM Award
Campanula Glomerata 'Superba', Clustered Bellflower 'Superba', Bellflower 'Superba', Danesblood 'Superba', Campanula 'Superba', Violet flowers, Purple flowers

Vigorous and charming, award-winner Campanula glomerata ‘Superba’ (Clustered Bellflower) is a rhizomatous perennial with upward-facing, bell-shaped, rich violet-blue flowers held in dense clusters counting up to 15 flowers. Blooming mostly from late spring to early summer, the flowers are borne atop sturdy leafy stems above a rosette of ovate to lance-shaped, toothed, green leaves. A dashing focal point in the garden, this Bellflower is perfect for a sunny or partly shaded herbaceous border.

  • Winner of the Award of Garden Merit of the Royal Horticultural Society.
  • Grows in sturdy clumps, up to 28 in. tall (70 cm) and 24-36 in. across (60-90 cm). It tends to spread rapidly in rich soils, forming a wide colony.
  • Thrives in full sun or part shade in average, medium, well-drained soils. Prefers part shade in warmer climates. It needs regular moisture!
  • Ideal for beds, borders, cottage gardens, and naturalized areas. Plant in groups for the best visual impact! A vigorous spreader, this Campanula is also a good ground cover. Allow plenty of space when planting, or plan to reduce the size each spring. Campanula glomerata makes excellent cut flowers that last up to 2 weeks in a vase!
  • Easy to grow, virtually disease and pest free, this low-care perennial is also deer and rabbit resistant and adored by hummingbirds, butterflies, and bees.
  • Cut back after flowering, both to prevent self-seeding and to encourage a second flush of flowers.
  • Easily divided in spring or fall.
  • Propagate by division in spring or autumn or take basal cuttings in spring

Requirements

Hardiness 3 - 8
Heat Zones 1 - 8
Climate Zones 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A1, A2
Plant Type Perennials
Plant Family Campanulaceae
Genus Campanula
Common names Bellflower, Clustered Bellflower
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 2' - 3'
(60cm - 90cm)
Spread 2' - 3'
(60cm - 90cm)
Spacing 24" - 36"
(60cm - 90cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Loam
Soil pH Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Cut Flowers, Plant of Merit, Showy
Tolerance Deer, Rabbit
Attracts Bees, Butterflies, Hummingbirds
Garden Uses Beds And Borders, Ground Covers, Underplanting Roses And Shrubs
Garden Styles Informal and Cottage, Prairie and Meadow
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Campanula (Bellflower)
Not sure which Campanula (Bellflower) to pick?
Compare Now

Alternative Plants to Consider

Campanulastrum americanum (American Bellflower)
Campanula persicifolia ‘Takion Blue’ (Peach-Leaved Bellflower)
Campanula garganica ‘Dickson’s Gold’ (Adriatic Bellflower)
Campanula cochlearifolia (Fairy’s Thimble)
Campanula punctata ‘Cherry Bells’ (Spotted Bellflower)
Campanula ‘Viking’ (Bellflower)

Recommended Companion Plants

Delphinium ‘Magic Fountain White’ (Candle Larkspur)
Digitalis purpurea (Common Foxglove)
Geranium ‘Patricia’ (Cranesbill)
Centranthus ruber (Red Valerian)
Lychnis coronaria (Rose Campion)
Achillea ‘Coronation Gold’

Find In One of Our Guides or Gardens

A Fabulous Border Idea with Primula vialii (Orchid Primrose)
Stunning Blue Flowers to Enhance Your Garden’s Beauty
Campanula – Which one for my Garden?
Great Campanulas for Rock Gardens
Great Campanulas for Your Garden Borders
Great Flowering Groundcover Plants: Campanula
Campanula persicifolia (Peach-Leaved Bellflower)
Campanula carpatica (Carpathian Bellflower)
Campanula glomerata (Clustered Bellflower)
Campanula lactiflora (Milky Bellflower)
Plants with Purple Flowers to Add Charm to Your Garden
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
Buy Plants

Requirements

Hardiness 3 - 8
Heat Zones 1 - 8
Climate Zones 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A1, A2
Plant Type Perennials
Plant Family Campanulaceae
Genus Campanula
Common names Bellflower, Clustered Bellflower
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Height 2' - 3'
(60cm - 90cm)
Spread 2' - 3'
(60cm - 90cm)
Spacing 24" - 36"
(60cm - 90cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Loam
Soil pH Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Cut Flowers, Plant of Merit, Showy
Tolerance Deer, Rabbit
Attracts Bees, Butterflies, Hummingbirds
Garden Uses Beds And Borders, Ground Covers, Underplanting Roses And Shrubs
Garden Styles Informal and Cottage, Prairie and Meadow
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Campanula (Bellflower)
Not sure which Campanula (Bellflower) to pick?
Compare Now

Gardening Ideas

Plant Calculator

How many Campanula glomerata ‘Superba’ (Clustered Bellflower) do I need for my garden?

Input your garden space dimensions

Your Shopping List

Plant Quantity
Campanula glomerata ‘Superba’ (Clustered Bellflower) N/A Buy Plants

Please Login to Proceed

You Have Reached The Free Limit, Please Subscribe to Proceed

Subscribe to Gardenia

To create additional collections, you must be a paid member of Gardenia
  • Add as many plants as you wish
  • Create and save up to 25 garden collections
Become a Member

Plant Added Successfully

You have Reached Your Limit

To add more plants, you must be a paid member of our site Become a Member

Update Your Credit
Card Information

Cancel

Create a New Collection

Sign Up to Our Newsletter

    You have been subscribed successfully

    Join Gardenia.net

    Create a membership account to save your garden designs and to view them on any device.

    Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

    Join now and start creating your dream garden!

    Join Gardenia.net

    Create a membership account to save your garden designs and to view them on any device.

    Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

    Join now and start creating your dream garden!

    Find your Hardiness Zone

    Find your Heat Zone

    Find your Climate Zone