Oakleaf hydrangeas are more than just wannabe oaks. With their summer blooms, fall foliage and exfoliating bark in winter, oakleaf hydrangeas pique your interest in one way or another for three of the year's four seasons. So if I had to pick just one feature of oakleaf hydrangeas that's the most outstanding, what would it be? I'd have to say the fall foliage. Its leathery leaves are large and turn purple, orangey-bronze or red in the autumn. The blooms of oakleaf hydrangeas stick around for autumn, too; only they trade in their summer whites for a pinkish-brown.

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