Botanical Name: Campanula glomerata 'Superba'
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Common Name: Superba Clustered Bellflower  
Plant photo of: Campanula glomerata 'Superba'
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Water Saving Tip:

Even though it's hot, your lawn only needs to be watered twice a week to stay healthy.

And don't water the whole lawn for a brown spot—drag out a hose.

  • Anatomy

  • Culture

  • Design

Plant Type

Perennial

 

Height Range

1-3'

 

Flower Color

Blue

 

Flower Season

Spring, Summer

 

Leaf Color

Green

 

Bark Color

n/a

 

Fruit Color

n/a

 

Fruit Season

n/a

Sun

Full, Half

 

Water

Medium, High

 

Growth Rate

Moderate

 

Soil Type

Sandy, Clay, Loam, Rocky, Unparticular

 

Soil Condition

Average, Rich, Well-drained

 

Soil pH

Neutral

 

Adverse Factors

n/a

Design Styles

English Cottage

 

Accenting Features

Showy Flowers

 

Seasonal Interest

Spring, Summer

 

Location Uses

Perennial Border, Patio

 

Special Uses

Cut Flowers, Small Spaces

 

Attracts Wildlife

n/a

Information by: Stephanie Duer
Photographer: JJ Neilson Arboretum
  • Description

  • Notes

'Superba' is a C. glomerata cultivar selected for its outstanding blue, large flower clusters. It grows taller than the species, generally about 20 to 30 inches tall and 12 to 18 inches wide. It has an upright, sort of erect habit and dark green, ovate to arrow-shaped leaves. Flowers are and open bell-shape, and appear in upward facing clusters at the ends of stems. Blooms late spring to mid summer. A lovely cut flower, use in the perennial border.
Grow in full sun to part shade, in well drained, loamy garden soil. Manages with very little water when sheltered from mid day sun. After blooming, you can snip away about a third of the plant, if you'd like a tidier appearance. Deadheading prolongs the blooming season, and as they make a lovely cut flower, snip them off and enjoy inside. Otherwise, cut back in late winter to early spring, as new growth emerges.