Blue lungwort

Blue lungwort is a clumping perennial that is often planted in groups to form a ground cover.  While other species of lungwort have spotted foliage, this species has solid green leaves.

This plant has some cultivated varieties. Go to list of cultivars.

 

Botanical name:

Pulmonaria angustifolia

All Common Names:

Blue lungwort, cowslip lungwort, blue cowslip, lords and ladies

Family (English):

Borage

Family (Botanic):

Boraginaceae

Tree or Plant Type:

  • Ground cover,
  • Perennial

Native Locale:

  • Non-native

Landscape Uses:

  • Foundation,
  • Massing,
  • Mixed border,
  • Patio/sidewalk

Size Range:

  • Small plant (6-12 inches)

Light Exposure:

  • Partial sun/shade (4-6 hrs light daily),
  • Full shade (4 hrs or less of light daily)

Hardiness Zones:

  • Zone 3,
  • Zone 4,
  • Zone 5 (Chicago),
  • Zone 6,
  • Zone 7,
  • Zone 8

Soil Preference:

  • Moist, well-drained soil

Season of Interest:

  • Early spring,
  • Mid spring,
  • Late spring,
  • Early summer,
  • Mid summer,
  • Late summer

Flower Color & Fragrance:

  • Blue

Shape or Form:

  • Mounded

Growth Rate:

  • Moderate

More Information:

Size and Method of spreading

Blue lungwort grows 8 to 12 inches high and 18 to 24 inches wide.  It is often used as a clump-forming ground cover.  Clump-forming ground covers are plants that are not usually thought of as ground covers.  They are perennials that can be planted closely together to provide the visual effect of a ground cover.

Plant Care

Shady conditions and moist soils for best growth.  Plants grown in dry conditions often don't look good.

Disease, pests, and problems

Slugs can be a problem.  Leaf spots and crown rot can occur if the plant is in a wet site.

Disease, pest, and problem resistance

Resistant to deer and tolerant of black walnut toxicity.

Native geographic location and habitat

Native to Europe.

Leaf description

This plant has both basal and stems leaves, with the stems leaves being alternate.  This species of Pulmonaria has leaves up to 6 inches long.  The leaves lanceolate to oblong-lanceolate and are somewhat bristly in appearance.  While some species of Pulmonaria have spotted leaves, this species has solid green leaves.

Flower description

The small blue flowers are funnel-shaped and borne in nodding clusters in early spring.

Fruit description

The small, dry fruits are not ornamentally important.

Cultivars and their differences

Azure blue lungwort (Pulmonaria angustifolia 'Azurea'):  Sky blue flowers.

Blaues Meer blue lungwort (Pulmonaria angustifolia 'Blaues Meer'):  Large, vivid blue flowers.

 

Related species

Red lungwort (Pulmonaria rubra):   This species is similar to other lungworts, but has solid green foliage and red flowers.  The leaves are covered with long, soft hairs.  Zone 4-7.  Cultivars include 'David Ward' (green leaves edged in white) and 'Redstart' (coral colored flowers).

 

 

Location of Pulmonaria angustifolia (Blue lungwort) at the Arboretum

We do not seem to have this in our living collection.