Silene flos-cuculi Petit Henri ('Iflyph')

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ragged robin [Petit Henri]

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Synonyms

Silene flos-cuculi 'Iflyph'
Lychnis flos-cuculi 'Iflyph'
Lychnis flos-cuculi Petit Henri

Herbaceous Perennial
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An upright perennial, to around 45cm high, with long, narrow, deep green basal leaves. Tall wiry stems bear double white flowers, with deeply cut, ragged petals and dark red calyces, from early to late summer

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

Chalk Clay Loam
Moisture
Moist but 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
Caryophyllaceae
Native to GB/Ireland
No
Foliage
Deciduous
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
Trade

How to Grow

Cultivation

Thrives in a moist, moderately fertile soil in sun or part shade. Well suited to moist meadows or wild gardens

Propagation

Propagate by seed, by division of established clumps, or by basal softwood cuttings in spring. May self-seed in place, but seedlings may vary

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Wildflower meadow
  • Cut flowers
  • Flower borders and beds

Pruning

Deadhead to prolong flowering or to prevent unwanted self-seeding

Pests

May be susceptible to slugs, aphids and cuckoo spit

Diseases

Generally disease-free