Hydrangeas have exploded in popularity in recent years and so has the number of cultivars available. One group of hydrangeas, developed by plant breeder Dr. Michael Dirr and released in 2004, changed the complexion of the hydrangea industry. Previously, hydrangeas bloomed on either old wood or new wood, but the Hydrangea macrophylla Endless Summer series blooms on last season’s wood and the current season’s wood, providing repeat blooming for an extended period. Touted as hardy to zone 4, Endless Summer offers five cultivars, with a sixth available soon. In the landscape they perform as hedges, specimen plants, container plants, or in a shrub border. Endless Summer Hydrangea Care and Cultivars to Try Endless Summer hydrangeas are compact, typically 2 to 4 feet tall (61 cm to 1 m) and are hardy in USDA zones 4 to 9. In warmer locations, give them at least three hours of morning sun and […]
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