One of the longest-flowering blue forms. Position: partial shade Soil: humus-rich, moist, well-drained soil Rate of growth: average to fast Flowering period: March to May Hardiness: fully hardy Said to be one of the longest-blooming blue lungworts, this ground-covering plant is well worth growing for the colour of the flowers alone. They are a striking cobalt blue, and they look very fresh and bright in spring, perched in clusters on top of the upright stems above the silver-freckled foliage. Garden care: Lift and divide large clumps every three to five years after flowering or in autumn. Cut back plants affected by mildew to the ground, water and feed - the plant will regenerate and produce new leaves later in the year.