Do Hydrangeas Need Full Sun

Hydrangeas require partial to full sun to produce the best blooms, depending on the variety. Full sun is considered 6 hours or more, while partial sun may be 4-6 hours of direct light each day. Blooms also benefit from some protection from strong afternoon sunlight.

The shrubs have a moderate tolerance for shade, with most varieties thriving in the dappled afternoon light and some able to tolerate heavily shaded areas too. During hot days and temperatures, enough dappled or shade coverage should reduce stress on plants and help plants thrive and bloom.

It’s important to supplement any shade with regular fertilizing both during spring and mid-summer for optimal blooming. Too little sunlight can result in fewer flowers being produced, as well as smaller petal sizes or a lack of green foliage altogether.

For most hydrangea varieties, late afternoon shadow is helpful when the atmosphere is too hot, allowing the blooms to take advantage of the cooler night air without damage due to direct sunshine at that hour. Without proper protection from the blazing summer heat, flower buds may not open or show color. The vibrant greenery around them won’t be powerfully lush either.

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