Silene acaulis 'Mount Snowdon'

RHS Plant Profile

moss campion 'Mount Snowdon'

Herbaceous Perennial

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A tiny evergreen alpine reaching 10cm. It forms a tight mound of tiny green leaves with stemless pink flowers across its surface, in summer

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

Up to 10 cm

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: Up to 10 cm

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 North–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: Evergreen
Habit: Matforming
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 well-drained but moisture-retentive soil in good light

Propagation

Propagate by seed or by division

Suggested planting locations and garden types

Rock garden
Patio and container plants

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to Powdery mildews