Cultivation Lungwort is a perennial herb which is propagated by root division in autumn or seed sown directly in spring. When dividing clumps, keep them well watered to encourage good root development before winter sets in. Plants requires a shady and reasonably moist environment and the soil should be rich in organic matter. Give it a little extra water during hot spells. In winter, cut back the flowering stems and mulch well.
Divide clumps three or four years after planting.
Harvesting Harvest the whole plant in the middle of summer during the flowering period. For medicinal purposes, make an infusion or tincture of leaves that have been gathered during the flowering period. Lungwort is traditionally used bronchial complaints. There is little evidence to support the effectiveness of this plant. It has astringent properties and can be used to cleanse the digestive system, for diarreha, and for cystitis.