When to plant Lungwort 'Blue Ensign'?

Pulmonaria 'Blue Ensign' thrives in partial or full shade, making it ideal for woodland gardens, shady borders, or beneath deciduous trees. It tolerates a range of soils but performs best in loam or clay that retains moisture without becoming waterlogged. Avoid dry, sandy sites or full sun, which can scorch the foliage and stress the plant. Plant in March, April, September, or October when the soil is workable and temperatures are mild. Autumn planting allows roots to establish before winter, while spring planting gives the plant a full growing season ahead. Prepare the soil by digging in plenty of organic matter—garden compost or well-rotted manure—to improve structure and moisture retention, especially if your soil is heavy clay. Set plants 40 cm apart to allow for their mature spread of 40–60 cm. Dig a hole slightly larger than the root ball, position the crown at soil level (not buried), and backfill with soil, firming gently to eliminate air pockets. Water thoroughly after planting to settle the roots, even if the soil feels damp. Apply a 5 cm layer of mulch around the base—leaf mould, bark chips, or compost—to conserve moisture, suppress weeds, and keep roots cool. Keep mulch clear of the crown to prevent rot. In dry spells during the first few weeks, water regularly until the plant is established. Pulmonaria is low-maintenance once settled, but good planting preparation pays dividends in vigour and flowering performance. Avoid planting in exposed, windy sites, as the large leaves can become tattered.