About
Campanula 'Sarastro' is a perennial that forms dense clumps, reaching heights of 45 to 60 centimeters. It features broad, fuzzy foliage and produces elongated, tubular flowers that are bell-shaped and deep bluish-purple, blooming from mid to late summer.
About the genus
Campanula encompasses a range of plants that can be annuals, herbaceous perennials, or evergreen perennials. These species produce bell or star-shaped flowers, frequently in shades of blue, during the late spring or summer months.
Growing conditions
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam
- Soil pH
- Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, North-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Cottage and informal garden, Gravel garden, Wildlife gardens
Care notes
- Cultivation
- Best grown in fertile, neutral to alkaline soil that is moist but well-drained; in partial shade or sun. No need to stake
- Pruning
- Cut back after flowering
- Propagation
- Propagate by division in spring or autumn or take basal cuttings in spring
- Pest resistance
- May be damaged by slugs and snails
- Disease resistance
- May be infected by a rust, powdery mildews and a leaf spot