Silene coronaria 'Alba'

RHS Plant Profile

white-flowered rose campion

Synonyms

Lychnis coronaria 'Alba'
Lychnis coronaria Alba Group

Annual Biennial Herbaceous Perennial

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A short-lived perennial or biennial to 90cm tall, with grey, softly hairy leaves and rounded white flowers 3cm wide in branched stems in summer

Position

Full sun, Partial shade

Soil Types

Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South–facing or West–facing or East–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: Caryophyllaceae
Native to GB/Ireland: No
Foliage: Semi evergreen
Habit: Clump forming
Genus: Silene can be annuals, biennials or herbaceous or evergreen perennials, with opposite, untoothed leaves and solitary or clustered flowers with 5, usually notched petals
Name Status: Accepted

How to Grow

Cultivation

Grow in any moderately fertile, well-drained soil in full sun or partial shade

Propagation

Propagate by seed

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Coastal
Flower borders and beds

Pruning

Deadhead to prolong flowering

Pests

May be susceptible to slugs

Diseases

Generally disease-free