This vigorously growing blue Hosta forms a full, symmetrical, wide mound that really makes a statement in the landscape. The elongated wedge-shaped leaves with wavy margins hold their blue color well into summer, eventually turning blue-green late in the season. Near-white flowers on 20-26" scapes in midsummer. Parentage is Hosta 'Blue Arrow' x Hosta nigrescens 'Elatior'. Hosta 'Yankee Blue' is a dense, fast grower.