Hydrangea macrophylla x serrata SMNHSI Let’s Dance Can Do

A cross between bigleaf and mountain hydrangeas brings about a very cold resistant plant with lacecap clusters of pH sensitive florets that bloom blue in acidic soils and pink in neutral to alkaline soils. This hortensia cultivar flowers from summer through autumn and prefers shade and moist well drained soil. 
USDA zones 4 to 9.
Height x Width: 4ft x 3ft