Pulmonaria angustifolia ‘Blue Ensign’ – A semi-evergreen perennial (herbaceous in colder regions) with funnel-shaped violet-blue flower clusters that fade to purple, borne from March to April. Unlike most Lungwort cultivars it features green foliage without spots and makes a good groundcover. Attracts pollinating insects. Grows 10-12″ high by 18″ wide. Hardy to zone 3.
Pulmonaria longifolia ‘Roy Davidson’ – A beautiful Lungwort with unusual flowers that emerge pink and mature to a striking pale sky blue, usually blooming in April. The foliage is somewhat similar to ‘Bertram Anderson’ but with slightly broader leaves which have prominent silver spotting. Divide every 4 years in the fall. Grows 12″ high by 18-24″ wide. Hardy to zone 3.
Pulmonaria officinalis – The Common Lungwort was named officinalis by Linnaeus for its past medicinal uses (I.e. coughs and bronchitis). It blooms in early spring with the flowers opening up pink, shifting to a violet-red and maturing to blue – often showing all three colours at once. The green leaves are spotted in white. Grows 10″ high by 18″ wide. Hardy to zone 4.
Pulmonaria ‘Little Star’ – As the cultivar name implies, this is a compact Lungwort which was originally derived from a ‘Bertram Anderson’ seedling that was pollinated by Pulmonaria angustifolia. It blooms from March to April (often with light repeat flowering) with deep rose buds that open to Gentian blue flowers. Lightly spotted foliage. Grows 8″ high by 18″. Zone 4.
Pulmonaria longifolia ‘Bertram Anderson’ (syn. ‘E.B. Anderson’) – This cultivar blooms a few weeks later than most Pulmonaria cultivars and features vivid violet-blue flowers from April to May. The mounded growth habit shows off the handsome lance-shaped deep green leaves that are heavily spotted in silver. Heat tolerant. Grows 10 to 12″ high by 18 to 24″ wide. Hardy to zone 3.