Description Pulmonaria ‘Opal’ = ‘Ocupol’ Lungwort. A clump-forming, semi-evergreen perennial which has elliptical silver spotted, dark green leaves. From March to May, clusters of clear pale blue flowers that open from pale pink buds are borne. Grow in humus-rich, fertile, moist soil in full or partial shade. It will reach a height of 35cm and a spread of 40cm. Supplied size 1 x Plant in 2 Litre Container
