Blue lungwort is a clumping perennial that is often planted in groups to form a ground cover. This species has solid green leaves, whereas other species have spotted foliage.
Size and method of spreading:
Blue lungwort grows 8 to 12 inches high and 18 to 24 inches wide. Although it is not typically thought of as a ground cover, it can be planted closely together to provide ground cover visual effect.
Native geographic location and habitat:
It is native to Europe.
Leaf or needle arrangement, size, shape, and texture:
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 are lanceolate to oblong-lanceolate and are somewhat bristly in appearance. This Pulmonaria species has solid green leaves, while some species have spotted leaves.
Flower arrangement, shape, and size:
The small blue flowers are funnel-shaped and borne in nodding clusters in early spring.
Fruit, cone, nut, and seed descriptions:
The small, dry fruits are not ornamentally important.
Shady conditions and moist soils are best for growth. Plants grown in dry conditions often don’t look as good.
List of pests and diseases:
Slugs can be a problem with blue lungwort. If it is in a wet site, leaf spots and crown rot can occur. It is resistant to deer and tolerant of black walnut toxicity.
Azure blue lungwort (Pulmonaria angustifolia ‘Azurea’):
It has sky blue flowers.
Blaues Meer blue lungwort (Pulmonaria angustifolia ‘Blaues Meer’):
This cultivar has large, vivid blue flowers.
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. It is hardy in zones 4 to 7. Cultivars include ‘David Ward‘ (green leaves edged in white) and ‘Redstart‘ (coral colored flowers).