Silene hookeri Ingramii Group

RHS Plant Profile

Hooker's campion Ingramii Group

RHS

Synonyms

Silene ingramii

Alpine Rockery

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Ingramii Group are tufted, prostrate, deciduous perennials, to about 5cm, with grey hairs covering the leaves. In late summer bears pink or white flowers, up to 6cm across, with a tubular base and five, deeply-divided petals

Position

Full sun

Soil Types

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

Loam Sand

Moisture: Well–drained
pH: Acid

Position

Full sun

Aspect: West–facing or South–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): H6

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Caryophyllaceae
Native to GB/Ireland: No
Foliage: Deciduous
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: Unresolved

How to Grow

Cultivation

Grow in moderately fertile, very well-drained, acid soil in full sun. Suitable for rock garden, scree bed or alpine house. Resents winter wet

Propagation

Propagate by seed, or by softwood cuttings in spring

Suggested planting locations and garden types

Gravel garden
Patio and container plants
Rock garden

Pruning

No pruning required

Pests

May be susceptible to aphids, glasshouse red spider mite and glasshouse whitefly under glass

Diseases

Generally disease-free