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Source:
The Boston Globe
The Boston Globe
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Hydrangeas are popular summer flowering shrubs, particularly the Nikko Blue mophead variety, which blooms on old wood and is vulnerable to winter weather that can kill its buds. In contrast, paniculata and arborescens varieties bloom on new wood, making them more reliable through harsh winters. Breeding for showy sterile flowers, especially in mopheads, has prioritized visual appeal over ecological function, with fertile flowers often buried inside. Native varieties like oakleaf hydrangeas and paniculatas retain their reproductive structures and offer environmental benefits, providing nectar for pollinators and seasonal interest even after blooming.
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