Pulmonaria angustifolia 'Blue Ensign'

Pulmonaria angustifolia 'Blue Ensign' forms low clumps of narrow, deep green leaves with a smooth surface and elongated shape that creates a tidy, refined mound. In early to mid spring, upright stems carry clusters of intense cobalt blue flowers that open above the foliage, providing clear color at a time when many shade plantings are just emerging.

The species is native to central and eastern Europe, where it grows in open woodland and meadow margins. In garden settings, 'Blue Ensign' suits shaded borders, woodland paths, and underplanting beneath deciduous shrubs, offering early nectar and dependable spring presence.