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Clustered Bellflower Superba in the GardenTags plant encyclopedia

Campanula glomerata 'Superba'

 

Clustered Bellflower 'Superba'

A compact hardy perennial suitable for being growning in pots and planters, as well as in window boxes, hanging basket and pots. Will flower from mid to late summer. This is a strong hardy perennial that will flower again next year. Large vivid blue bell-shaped flowers set against dark green ovate leaves.

 
plant Features
  • Clustered Bellflower Superba likes full sun

    Full sun

  • Clustered Bellflower Superba likes occasional watering

    Occasional watering

  • Clustered Bellflower Superba is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Clustered Bellflower Superba likes moist and free draining

    Moist and free draining

 
plant information

Common name

Clustered Bellflower 'Superba'

Latin name

Campanula glomerata 'Superba'

type

Hardy Perennial

family

Campanulaceae

ph

5.0 - 8.5 Acid - Neutral

  • Light

    Clustered Bellflower Superba likes full sun

    Full sun

  • Frost

    Clustered Bellflower Superba is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Soil

    Clustered Bellflower Superba likes moist and free draining

    Moist and free draining

  • Water

    Clustered Bellflower Superba likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Clustered Bellflower Superba is 1.00meters x 0.75meters 1.00 M 0.75 M

Campanula glomerata 'Superba'

A compact hardy perennial suitable for being growning in pots and planters, as well as in window boxes, hanging basket and pots. Will flower from mid to late summer. This is a strong hardy perennial that will flower again next year. Large vivid blue bell-shaped flowers set against dark green ovate leaves.


Planting

From Early Spring TO Mid Spring

Plant bellflowers in full sunlight and cut back tall plants or move large structures that create shaded conditions around them. Lay a 2 to 3 inch layer of organic mulch, such as straw or pine needles, to the soil surrounding the campanula and some into the planting hole beneath the root ball; do not press it directly against the plant's stem. Campanula plants grow well without mulch, but it helps soil retain water and deters weeds.

 

Propagation by seed

From Mid Spring TO Late Spring

Campanula can grow from seed or from rhizomes. The tiny seeds should go in prepared soil in spring after all danger of frost has passed. Make sure to keep seedlings moderately moist when caring for bellflowers. To plant rhizomes, sever them from the parent plant at a root node and bury the roots in the soil.

 

Flowering

From Early Summer TO Early Autumn

Bellflowers will bloom heaviest in early to mid-summer but can delight you with flowers all the way into Autumn in some areas.

 
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