Pulmonaria longifolia ‘Diana Clare’ is a graceful, clump-forming perennial that produces pale blue, funnel-shaped flowers in early spring above a rosette of narrow, lance-shaped green leaves with subtle silver markings. The flowers provide early-season colour and a delicate focal point in borders, rockeries, or shaded containers. Its slender, upright habit makes it ideal for underplanting shrubs or planting along shaded pathways. This cultivar attracts early-season pollinators, offering both ecological and ornamental value.

It thrives in partial shade to full shade in moist, well-drained soil enriched with organic matter. Low-maintenance once established, it benefits from regular watering during dry spells. Although non-native to the UK, it provides reliable spring colour and textural interest for shaded garden settings.