Description Pulmonaria ‘Cotton Cool’ Lungwort. A loosely clump-forming perennial with large rosette-like clumps of long, narrow, silvered leaves. Clusters of funnel-shaped flowers are borne from March to May, opening pink-red, before turning blue. Grow in humus-rich, fertile, moist soil in full or partial shade. It will reach a height of 30cm and a spread of 30cm. Supplied size 1 x Plant in 2 Litre Container
