Arenaria montana Summer White Compact ('Amoz0002'PBR)

RHS Plant Profile
mountain sandwort [Summer White Compact]

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Synonyms

Arenaria montana 'Amoz0002'PBR

Alpine Rockery
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A vigorous, evergreen perennial to 20cm tall, with wiry stems and linear to lance-shaped grey-green leaves to 2cm long. In late spring and early summer it produces a profusion of white flowers to 2cm across

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

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

Position

Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
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)
H5
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Caryophyllaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Matforming
Genus
Arenaria can be annuals or usually mat-forming, evergreen or herbaceous perennials with small leaves and 5-petalled white flowers
Name Status
Trade

How to Grow

Cultivation

Grow in poor, freely-draining soil in full sun. Plants are drought resistant once established

Propagation

Propagate by seed, division or basal cuttings

Suggested planting locations and garden types

  • Cottage and informal garden
  • Gravel garden
  • Patio and container plants
  • Rock garden
  • Low Maintenance
  • Banks and slopes
  • Flower borders and beds
  • Garden edging

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free