Saxifraga 'Stellar Cloud' (_fortunei_) (5)

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saxifrage 'Stellar Cloud'

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Herbaceous Perennial
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A dwarf, clump-forming perennial with rosettes of dark green, rounded leaves with a reddish tint to around 30cm in height. Masses of star-shaped creamy-white flowers with yellow centres on short stems appear from late summer throughout the autumn. A good choice for colour in a shady border or rock garden and also makes a good houseplant

Position

Full shade, Partial shade

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
pH
Acid or Neutral

Position

Full shade Partial shade
Aspect
East–facing or North–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)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Saxifragaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming
Genus
Saxifraga can be annuals, biennials, evergreen or herbaceous perennials, mostly mat-forming in habit, with simple or palmately lobed leaves and starry or rounded flowers which may be solitary of in panicles or cymes
Name Status
Unresolved
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

Irregulares section saxifrages are shade-tolerant, usually herbaceous perennials forming rosettes broad, palmately lobed leaves, with leafless stems bearing lax panicles of small flowers with short upper, and longer lower petals, in summer or autumn

How to Grow

Cultivation

Grow in moist but well-drained, moist, humus-rich, slightly acidic soil in deep or partial shade

Propagation

Propagate by detaching rosettes and rooting as cuttings in late spring or early summer

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Rock garden
  • Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to aphids, slugs, vine weevil and glasshouse red spider mite

Diseases

Generally disease-free