Brunnera macrophylla 'Diane's Gold'PBR

RHS Plant Profile
Siberian bugloss 'Diane's Gold'

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Synonyms

Brunnera macrophylla 'Sldg'

Herbaceous Perennial
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A deciduous, clump-forming perennial to around 40cm high forming a mound of rough, heart-shaped, golden-yellow to green leaves topped with sprays of small, sky blue flowers in spring

Position

Full shade, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline 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)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Boraginaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy, 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 grown in moderately fertile, humus-rich soil that is moist but well-drained. A cool site in partial shade is preferred as leaves will scorch in full sun

Propagation

Propagate by division in early spring or autumn

Suggested planting locations and garden types

  • Cottage and informal garden
  • Banks and slopes
  • Flower borders and beds
  • Ground cover
  • Underplanting of roses and shrubs

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free