Pulmonaria angustifolia 'Munstead Blue'

RHS Plant Profile
lungwort 'Munstead Blue'

Save a plant

Where do you want to save Pulmonaria angustifolia 'Munstead Blue'?

Plants I own
Wishlist
Go to My Plants
lungwort 'Munstead Blue' RHS
Plants for pollinators
Herbaceous Perennial

A clump-forming, deciduous, herbaceous perennial to 20cm high with plain green, lance-shaped to narrowly oval leaves. Clusters of bright blue, funnel-shaped flowers, each up to 2cm long, are borne on erect stems in early spring

Position

Full shade, Partial shade

Soil Types

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

Position

Full shade Partial shade
Aspect
South–facing or North–facing or West–facing or East–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
Genus
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
Name Status
Accepted

How to Grow

Cultivation

Grow in partial shade or full shade in well-drained humus-rich soil that stays moist all summer; remove old leaves after flowering; divide every three to five years

Propagation

Propagate by division after flowering or in autumn, or by root cuttings in midwinter

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens
  • Underplanting of roses and shrubs
  • Flower borders and beds
  • Ground cover

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to powdery mildews in dry conditions