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Pulmonaria 'Diana Clare' AGM

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© RHS

Characteristics

Plant type

Herbaceous Perennial

Habit

Bushy

Resilience

Hardiness

H6 (hardy - very cold winter)

Colour

Flower

Blue in Spring and Winter

Foliage

Green and Grey/Silver in Autumn, Spring, Summer and Winter

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

lungwort 'Diana Clare'

Family

Boraginaceae


Pulmonaria can be herbaceous or semi-evergreen rhizomatous perennials with terminal clusters of funnel-shaped flowers in late winter or early spring, and often strikingly patterned leaves developing in summer

'Diana Clare' is a vigorous semi-evergreen perennial with narrow silvery-green leaves, lightly speckled with dark green near the margins, and violet-blue flowers from late winter to late spring

How to grow

Sunlight

  • Part shade
  • Full shade

Aspect

  • North-facing, West-facing or East-facing
  • Sheltered

Cultivation

Grow in humus-rich, fertile, moist but not waterlogged soil in full or partial shade

Soil

  • Moist but well-drained
  • Acid, Alkaline or Neutral
  • Clay, Chalk or Loam

Propagation

Propagate by division after flowering or in autumn

Suggested planting locations and garden types

Banks and Slopes, City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds, Ground Cover or Wildlife Gardens


How to care

Pruning

Remove old leaves after flowering

Pests

Generally pest free

Diseases

May be subject to powdery mildews in dry conditions