A Bigleaf Hydrangea plant with flowers that form on the current year's growth as well as on old wood. Endless Summer® can bloom for months in warm areas, especially if deadheaded regularly, and the flower heads—blue on acid soils (add aluminum sulphate to soil), pink on alkaline (Add lime to soil)—are up to 9" across. 'Bailmer' PP 15,298

For gardeners in Zones 4 and 5, we advise planting H. macrophyllas in a sheltered location and giving them a winter mulch. This will provide protection from winds and cold temperatures that can damage flower buds.