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FAQ: Why is my oakleaf hydrangea not blooming?

Oakleaf hydrangeas (Hydrangea quercifolia) are native to the southeastern United States and are valued for their large clusters of flowers and oak-like leaves. A lack of blooms is usually caused by improper pruning practices or inadequate water. Both can be remedied with ease.

What do you do when hydrangeas don’t bloom?

If you have a hydrangea that won’t flower, you may have pruned it back too far the year before. Often, hydrangeas that aren’t producing flowers have been pruned in early summer and late winter.

How do you fertilize oakleaf hydrangeas?

To encourage healthy growth, fertilize your oakleaf hydrangea each spring with a general-purpose garden fertilizer and top dress with fresh compost. Unlike mophead-style hydrangeas, oakleaf hydrangeas won’t change their flower color based on soil acidity, so there’s no need to monitor or alter the pH of your soil.

Why is my oak leaf hydrangea not blooming?

Oakleaf hydrangeas (Hydrangea quercifolia) are native to the southeastern United States and are valued for their large clusters of flowers and oak-like leaves. A lack of blooms is usually caused by improper pruning practices or inadequate water. Both can be remedied with ease.

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Does oakleaf hydrangea need full sun?

Oakleaf hydrangeas bloom best where summers are hot but prefer some afternoon shade. It its more northern range it can be planted in full sun. The greater the sun exposure the more prolific are the blooms and you’ll get the most spectacular fall color.

What would cause a hydrangea not to bloom?

The primary reasons hydrangeas don’t bloom are incorrect pruning, bud damage due to winter and/or early spring weather, location and too much fertilizer. Hydrangea varieties can be of the type that blooms on old wood, new wood or both. So this fall your Nikko is producing blooms that will flower next spring.

What do you feed hydrangeas to make them bloom?

Hydrangeas will benefit from an all-purpose, balanced fertilizer, such as a 10-10-10 N-P-K, that contains equal amounts of each nutrient. A balanced fertilizer will encourage healthy foliage as well as bountiful blooms.

Is Miracle Grow good for hydrangeas?

All-purpose Miracle-Gro fertilizer is well suited for hydrangeas. Mix the Miracle-Gro fertilizer with water according to package instructions for the size of your hydrangea shrubs. Apply the Miracle-Gro fertilizer every other time you water, about every two to three weeks.

What is the best fertilizer for oakleaf hydrangeas?

Oak leaf hydrangea performs best in shade with fertile, moist soil, though it does tolerate sun when given proper care.

  • Perform a soil test using a kit available at hardware stores, garden centers and through university extension offices.
  • Adjust your soil pH as needed.
  • Use a 10-10-10 granular fertilizer.

When should I fertilize my oakleaf hydrangea?

Feed your oakleaf in early spring each year with the same fertilizer or a flower-enhancing fertilizer such as Pennington UltraGreen Color Blooms & Bulbs Plant Food 15-10-10. Then feed it again four months later, in midsummer.

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Do oakleaf hydrangeas need fertilizer?

This is a slow growing plant that will need a minimal amount of pruning. Over time, the soils acidity should be supplemented with an acid-based fertilizer. A liquid fertilizer, like Miracid works well.

Should I cut back my oakleaf hydrangea?

Oakleaf hydrangeas bloom on the previous season’s growth, so prune right after flowering in the fall or in early winter. Prune the older growth from oakleaf hydrangeas after the shrub flowers. Oakleaf hydrangeas benefit from a light trim, but they do not need extensive pruning to keep their shape.

Should oak leaf hydrangeas be pruned?

Pruning – Oakleaf hydrangea generally requires little if any pruning. Should it become necessary to shape the plant or reduce its size, prune shortly after the shrub flowers. This shrub sets flower buds in late summer for next year. In other words, it blooms on old wood.

How do you rejuvenate an old hydrangea?

To rejuvenate the hydrangea, remove up to 1/3 of the older living stems down to the ground each summer. This will revitalize the plant. If necessary to control the size of the plant, cut back before late July to allow for buds to develop. Usually the plant will return immediately to its former size.

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