Androsace carnea subsp. laggeri

RHS Plant Profile
Lagger rock jasmine

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Lagger rock jasmine Dorling Kindersley 2003

Synonyms

Androsace laggeri

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Alpine Rockery Herbaceous Perennial
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A tufted perennial forming cushions composed of neat rosettes of small, thick, awl-shaped leaves. Cupped, rich deep pink flowers 8mm width are borne in umbels on stems about 5cm in height in late spring

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Up to 10 cm

Max Spread

0-0.1 metre

Size

Time to Maturity
2–5 years
Max Spread
0-0.1 metre
Max Height
Up to 10 cm

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or East–facing
Exposure
Exposed
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)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Primulaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Matforming
Genus
Androsace can be annuals, biennials or evergreen perennials forming mats or compact cushions, with salver-shaped flowers which may be solitary or in umbels
Name Status
Correct
Plant Range
Pyrenees

How to Grow

Cultivation

Grow in moist but well-drained, gritty soil in a trough in full sun, top dress with grit

Propagation

Propagate by seed sown in pots in an open frame as soon as ripe or in autumn. Propagate by rooting single rosettes as cuttings in early to midsummer. Keep moist; water from below to avoid wettng the rosettes

Suggested planting locations and garden types

  • Patio and container plants
  • Rock garden
  • Low Maintenance

Pruning

Remove dead rosettes

Pests

Generally pest-free

Diseases

May be susceptible to fungal diseases in damp conditions