Campanula glomerata 'Superba'
clustered bellflower 'Superba'
'Superba' is a strong-growing rhizomatous perennial forming a wide colony of erect stems to 60cm, with oblong to ovate leaves and dense clusters of deep violet-purple, bell-shaped flowers 3cm in length
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Purple | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
North–facing or West–facing or South–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Campanulaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Campanula may be annuals, herbaceous or evergreen perennials, with bell or star-shaped, often blue, flowers in late spring or summer
- Name status
Accepted
How to grow
Cultivation
Best grown in fertile, neutral to alkaline soil that is moist but well-drained, in partial shade or sun. No need to stake
Propagation
Propagate by division in spring or autumn or take basal cuttings in winter
Suggested planting locations and garden types
- Cottage and informal garden
- Wildflower meadow
- Flower borders and beds
- Cut flowers
- Underplanting of roses and shrubs
Pruning
Cut back after flowering to encourage a second flush of flowers
Pests
Diseases
May be infected by a rust, powdery mildews and a leaf spot
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