Brunnera macrophylla 'Looking Glass'PBR

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Siberian bugloss 'Looking Glass'

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Synonyms

Brunnera macrophylla 'Silver All Over'
Brunnera 'Looking Glass'

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Herbaceous Perennial
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A herbaceus perennial with mostly silvery foliage without a green trim, sparse green veining, and floriferous delicate 5-petaled flower sprays from February to June. An excellent plant for ground cover

Position

Full shade, Full sun, Partial shade

Soil Types

Chalk, Clay, Loam

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 Clay Loam
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full shade Full sun Partial shade
Aspect
North–facing or South–facing or East–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

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Boraginaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Brunnera are rhizomatous herbaceous perennials with large, ovate or heart-shaped basal leaves and sprays of small bright blue flowers in spring
Name Status
Accepted

How to Grow

Cultivation

Best cultivated in full or dappled shade in woodland conditions which do not dry out. In full sun keep soil moist, mulched.

Propagation

Propagate from roots in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Ground cover
  • Flower borders and beds

Pruning

Older leaves can be cut back in spring and during growing season to encourage new growth. Leave the plant to age in autumn to protect the crown. If overcrowded after a few years, in spring dig up carefully with a fork, tease out roots and select the heathiest clumps for replanting.

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free