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Herbaceous Perennial

Pulmonaria 'Apple Frost'
  • RHS Plants for pollinators

lungwort 'Apple Frost'

A clump-forming to spreading deciduous, herbaceous perennial with green ovate leaves marked with white blotches. The leaves often have a hairy or felt-like texture. Small funnel-shaped blue flowers are produced in spring, often with purple throats.

Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
5–10 years
Ultimate spread
0.5–1 metres
Growing conditions
Loam
Clay
Moisture
Moist but well–drained
pH
Neutral, Acid
Colour & scent
StemFlowerFoliageFruit
Spring Blue Purple Green White
Summer Green White
Autumn Green White
Winter
Position
  • Full shade
  • Partial shade
Aspect

West–facing or East–facing or North–facing

Exposure
Sheltered
Hardiness
H6
Botanical details
Family
Boraginaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Matforming, Clump forming
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 moist but free draining, humus rich soil in shade or partial shade.

Propagation

Propagate by division

Suggested planting locations and garden types
  • Cottage and informal garden
  • Wildlife gardens
  • Flower borders and beds
  • Ground cover
  • Banks and slopes
  • Underplanting of roses and shrubs
Pruning

Faded foliage can be trimmed in late autumn if required

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to powdery mildews when grown in dry conditions.

Get involved

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