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What month do hydrangeas bloom?

Updated July 19, 2017

Hydrangeas bloom at different times depending on where you live and the variety of hydrangea you grow. In general, hydrangeas bloom from late spring to summer, with some varieties blooming earlier, later or longer.

Smooth hydrangeas

Smooth hydrangeas, or Hydrangea arborescens, bloom in June and July (early summer). Cultivars of Hydrangea arborescens include Annabelle, Incrediball and Invincibelle Spirit.

Bigleaf hydrangea

Bigleaf hydrangeas, or Hydrangea macrophylla, have numerous cultivars and bloom in the summer months of June, July and August. Endless Summer cultivars bloom continuously throughout the summer. Bigleaf hydrangeas include mophead and lacecap types, as well as variegated and all-pink varieties.

Oakleaf hydrangeas

Oakleaf hydrangeas (Hydrangea quercifolia) bloom in early to midsummer. Many Oakleaf cultivars have white flowers, and some even have yellow or red foliage, adding late-summer interest to the garden.

Panicle hydrangeas

Hydrangea paniculata, better known as Panicle hydrangeas, bloom in the summer months of June and July. Panicle hydrangeas, unlike other varieties, bloom on new growth, so pruning in spring encourages new growth and more blossoms.

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About the Author

Louise Thomas has been a freelance grant writer since 2009. She began publishing online in 2010 in order to write about her true love—gardening. She has experience working with nonprofit organizations as well as in the construction and landscaping industries. She received her Bachelor of Arts degree from the University of Iowa with a major in studio art.