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Alpine Rockery

Androsace pubescens

downy rock jasmine

A cushion-forming, evergreen perennial with dense rosettes of small, hairy, mid-green leaves. White flowers, up to 10mm across, with yellow or green eyes, are produced on very short stems in late spring and early summer

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Ultimate height

Up to 10cm

Time to ultimate height

5–10 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

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)

Botanical details

Family: Primulaceae
Native to the UK: 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: Alps, Pyrenees

How to grow

Cultivation

Grow in gritty, well-drained soil in a wall crevice, rock garden, scree or trough

Propagation

Propagate by seed or root single rosettes as cuttings in early to mid-summer. Water cuttings from below to avoid wetting foliage

Suggested planting locations and garden types

Patio and container plants
Rock garden
Gravel garden

Pruning

No pruning required

Pests

Generally pest-free

Diseases

May suffer from fungal problems under wet conditions

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