Campanula 'Senior'

Synonyms

Campanula lactiflora 'Senior', Campanula poscharskyana 'Senior'

Herbaceous Perennial

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A perennial hybrid to around 100cm in height, with fresh green, lightly toothed foliage forming a neat base. Upright stems of starry, bell-shaped, soft lavender-blue flowers with paler centres, create a delicate, shimmering effect from June to September, contrasting beautifully with the vertical flower sprays. A graceful addition adding height to borders or cottage-style planting schemes

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.5-1 metres
Max Height: 1-1.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: East–facing or South–facing or West–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H7

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Campanulaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming, Columnar upright
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

Thrives in humus-rich, well-drained soil. It tolerates short dry periods well but dislikes wet in winter

Propagation

Propagate by division in spring or early autumn or by basal cuttings or seed in spring

Suggested planting locations and garden types

Cottage and informal garden
Wildflower meadow
Wildlife gardens
Flower borders and beds
Underplanting of roses and shrubs
Wall side borders

Pruning

No formal pruning required. deadhead spent flowers to encourage prolonged blooming. After flowering trim back straggly stems to keep the plant neat and compact

Pests

May be susceptible to slugs and snails, especially on young growth. May be susceptible to aphids but these rarely cause serious harm

Diseases

May be susceptible to root rot if soil is poorly drained. Powdery mildews are uncommon but possible in humid conditions