Campanula portenschlagiana 'Sago'
wall bellflower 'Sago'
A low growing perennial that forms a neat, evergreen mat of atractive small, round, dark green, toothed leaves. Numerous, outward facing, lilac-blue, bell-shaped, single flowers are borne on short stalks sitting just above its foliage providing a long flowering display in summer
Buy this plant
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Blue | Green | ||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H5Botanical details
- Family
- Campanulaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Matforming
- Genus
Campanula may be annuals, herbaceous or evergreen perennials, with bell or star-shaped, often blue, flowers in late spring or summer
- Name status
Unresolved
How to grow
Cultivation
Will grow well in rock gardens and well-drained flower borders in full sun or partial shade avoiding wet conditions in winter. A semi-shade position will ensure the best flower colour is preserved.
Propagation
Propagate by seed and by basal cuttings in spring
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Gravel garden
- Rock garden
- Patio and container plants
- Wildlife gardens
- Flower borders and beds
- Garden edging
- Ground cover
Pruning
No pruning required
Pests
Diseases
May be susceptible to a rust, powdery mildews and leaf spot
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.