Oakleaf Hydrangea - Ultimate Guide to Care & Growing (2024)

Oakleaf hydrangea (Hydrangea quercifolia) is a deciduous shrub native to the southeastern US, grown for its attractive foliage, long-lasting flowers and four-season appeal.

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Named for the deeply lobed oak-like foliage, this multi-stemmed shrub grows 4-8 feet tall and wide with a compact rounded habit. Cone-shaped flower clusters appear from late spring to early summer, with single or multi-petaled white blooms that fade to shades of pink and mauve.

Oakleaf Hydrangea - Ultimate Guide to Care & Growing (1)In fall, the leathery green foliage turns vivid shades of purple, red and bronze. Cinnamon-brown peeling bark along the stems is revealed after the leaves drop off, creating winter-long interest. Hardy in USDA zones 5-9, oakleaf hydrangea is tolerant of different growing conditions. This versatile shrub can be used in woodland borders, foundation plantings, containers, or massed in the landscape.

PLANTING & CARING FOR OAKLEAF HYDRANGEA

How to plant: Follow these steps and space 4-8 feet apart, depending on the variety.Look to your plant’s tag for specific recommendations.

  1. Dig a hole slightly deeper than the root ball and 2-3 times wider.
  2. Remove the plant from the nursery pot and loosen the soil around the roots.
  3. Set the plant in the hole with the top of the root ball slightly above soil level.
  4. Backfill the hole with soil and tamp down slightly to remove air pockets. Water well.
  5. Apply a 2- to 3- inch layer of shredded bark mulch to retain moisture and suppress weeds.

Soil:Plant in slightly acidic soil with adequate drainage to prevent root rot. For containers, use a high-quality all-purpose potting mix.

Watering: Plants need regular water for healthy growth and optimal flowering. Keep soil evenly moist but not soggy. Water deeply to establish healthy roots. Oakleaf hydrangea is more drought-tolerant than other hydrangeas.

Fertilizing: In early spring, apply a granular fertilizer specially formulated for trees and shrubs according to package instructions. Reapply annually.

Mulching: Each spring, apply compost, shredded bark or other organic matter around the base of plants. For winter protection in colder climates, mound 6-8 inches of mulch around the base after the ground freezes in fall. Pull back the mulch in early spring to allow the soil to warm up.

TRY THESE PROVEN WINNERS® VARIETIES

Oakleaf hydrangea comes in different sizes and flower colors. Try these in your landscape:

Gatsby Gal® is smaller than other varieties, reaching just 5-6 feet tall and wide at maturity. Large white flower panicles stand upright above the foliage, while fall color is vivid wine-red. The compact size is suitable for containers, foundation plantings, and smaller spaces such as side yards and entryways.

Gatsby Pink® produces big showy flower heads that start out snowy white, quickly fading to deep pink, offering months of color. Dark green foliage turns a rich burgundy-red in fall. Use this larger variety as a stand-alone specimen in an island planting, as tall hedging or screening along a property line.

Gatsby Moon® adds classic elegance to the landscape, with tightly packed pure white florets on distinctly pointed flower heads. The weather-resistant flowers assume lime-green highlights as they age, holding their color well through summer. Vibrant green foliage turns wine-red in fall. Use this larger variety for screening, hedging or woodland borders.

OAKLEAF HYDRANGEA FAQ’s

How much sun does an oakleaf hydrangea need?

Oakleaf hydrangea does best with direct morning sun and some afternoon shade, particularly in hotter climates.Too much sun can result in foliage burn.

Will oakleaf hydrangea grow in shade?

Plants can survive in shade, but do best with at least half-day sun. Too much shade can result in leggy growth, fewer blooms, poor fall color, and an increased risk for diseases such as powdery mildew.

How big does an oakleaf hydrangea get?

Dwarf varieties can be as little as 3-4 feet tall and wide, while the average mature size of most varieties is 6-8 feet tall and wide.

Do you cut back oakleaf hydrangeas?

Avoid pruning this type of hydrangea except to remove dead branches in the spring once the plant starts to leaf out. Learn more about pruning hydrangeas.

When to plant oakleaf hydrangea?

The best time to plant oakleaf hydrangea is during the cooler months of spring or fall.

Do deer eat oakleaf hydrangea?

Oakleaf hydrangea is more deer resistant than other hydrangeas. However, some gardeners may experience deer browse, especially if other food is scarce.

What to plant with oakleaf hydrangea?

Oakleaf hydrangea is compatible with many other shrubs, trees, and perennials. Choose varieties such as woodland natives that prefer similar growing conditions.

HOW TO USE OAKLEAF HYDRANGEA IN YOUR LANDSCAPE

This versatile shrub can be used in many ways. Here are just a few ideas:

  • Plant a smaller variety such as Gatsby Gal® in a container and place near an entryway or other well-trafficked area where the blooms and foliage can be enjoyed up close.
  • Combine in a foundation planting with other shrubs that bloom at different times for continuous color.
  • Use a larger variety such as Gatsby Pink® as a background plant in a mixed border for changing color in different seasons.
  • Mass any variety along a slope for low-maintenance erosion control.
  • Plant as a hedge to divide garden rooms or provide privacy along a property line.
  • Use as an understory plant in a woodland border in combination with perennials and groundcovers for a layered effect.

COMPANION PLANTS

Combine oakleaf hydrangea alongside other plants with similar cultural needs of partial shade and moist soil.

Use oakleaf hydrangea in a foundation planting or border along with other shrubs such as:

  • Sprinter® boxwood
  • Little Henry® sweetspire
  • Legend of the Fall® bottlebrush
  • Castle Keep® blue holly

Underplant oakleaf hydrangea in a woodland border with perennials such as:

  • Shadowland® ‘Seducer’ hosta
  • Dolce® ‘Silver Gumdrop’ coral bells
  • ‘Brilliance’ autumn fern
  • ‘Pink Diamonds’ fern-leaved bleeding heart

For dazzling late season color, pair oakleaf hydrangea with:

  • Prairie Winds® ‘Desert Plains’ fountain grass
  • Rock ’N Round ‘Pure Joy’ stonecrop
  • ‘Little Goldstar’ black-eyed Susan
  • Pearl Glam® beautyberry

Want to learn more?

Types of Hydrangeas

Lacecap Hydrangea

Panicle Hydrangeas

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Oakleaf Hydrangea - Ultimate Guide to Care & Growing (2024)

FAQs

Oakleaf Hydrangea - Ultimate Guide to Care & Growing? ›

Site and sunlight – In northern areas, oakleaf hydrangeas do well in full sun to light shade. In southern zones, give them sites with morning sun and protection from intense afternoon rays. Soil – Oakleaf flourishes in rich, well-drained, slightly acidic soil.

Where is the best place to plant oakleaf hydrangeas? ›

Site and sunlight – In northern areas, oakleaf hydrangeas do well in full sun to light shade. In southern zones, give them sites with morning sun and protection from intense afternoon rays. Soil – Oakleaf flourishes in rich, well-drained, slightly acidic soil.

Can oakleaf hydrangeas tolerate full sun? ›

Oakleaf hydrangea grows best in organically rich, well-drained soils with medium moisture. It does well in full sun to part shade, and mulch in the summer helps to keep the soil moist. The plant does need some sun to bloom, usually from mid spring to early summer.

What is the growth habit of oakleaf hydrangea? ›

Typically growing 4 to 8 feet tall, this multi-stemmed shrub spreads by suckering, and has a rounded upright growth habit. Oakleaf hydrangea makes a good specimen plant, and it also works well as a foundation plant or when massed in shrub borders or open woodland gardens.

How do you prepare soil for oakleaf hydrangeas? ›

Soil – Oakleaf hydrangea prefers moist, organic, fertile, well-drained, slightly acidic soil with a pH of 5.0 – 6.5. Drought tolerant once established, it does appreciate water during very dry conditions. Good drainage is important. Although the plant likes moist soil, it cannot tolerate wet feet.

Do oakleaf hydrangeas like coffee grounds? ›

If you've been trying to get your hydrangeas to become big and blue, then we might just have the tip for you. Hydrangeas color is based on how acidic your soil is—the more acidic the soil you plant your hydrangeas in, the more blue. We've found that adding a few coffee grounds to your soil can do just the trick.

Are oakleaf hydrangeas hard to grow? ›

All they need is well-drained soil, some water and a little bit of shade during hot summer days. Find out even more about hydrangea care in our Complete Hydrangea Guide! Oakleaf varieties are the easiest type of hydrangeas for beginners to grow.

What should I plant in front of oakleaf hydrangea? ›

Here are a few companion plants that complement Oakleaf hydrangea: Hosta (Hosta spp.): These shade-loving perennials are famous for their attractive foliage and work great under the canopy of Oakleaf Hydrangeas. Ferns: Native ferns that appreciate the same light and moisture conditions can make excellent companions.

What happens if hydrangeas get too much sun? ›

Too much sun exposure can cause your hydrangea shrubs to burn on its leaves and blooms. Also, be sure to put your fingers in the soil to see if it needs watering. We do recommend a soak versus light watering each day, but you should be sure that the soil is always moist – not wet – by sticking your fingers in the dirt.

What month do you prune oakleaf hydrangeas? ›

By pruning your oakleaf hydrangea (Hydrangea quercifolia) in spring, you are removing the flower buds before they get a chance to bloom. Prune oakleaf hydrangea only in summer right after the flowers fade.

Can you cut oakleaf hydrangea to the ground? ›

If your oakleaf hydrangea is very old and woody, take out a few of the oldest, thickest stems all the way to the ground in the early spring to encourage some new growth.

What killed my oakleaf hydrangea? ›

Armillaria root rot can attack oakleaf hydrangea as well as a variety of common shrubs, trees and many oak species. Especially on stressed trees these fungi are considered as dangerous root rot pathogens. The first symptom of Armillaria root rot on healthy hydrangea is the sudden wilting of one or more shoots.

How long does it take for oakleaf hydrangeas to reach full size? ›

Oakleaf hydrangeas are available in various sizes from compact to large. The larger varieties can reach up to 12 feet tall and wide. These shrubs are relatively slow growing shrubs growing about one to two feet per year.

Are oakleaf hydrangeas toxic to dogs? ›

Oakleaf Hydrangea Is Toxic To Dogs 🐶 🐶 Oakleaf Hydrangea releases cyanide when chewed, causing dog poisoning. Symptoms include vomiting, diarrhea, and increased heart rate; seek vet if severe. Prevent access with fences and educate family on plant toxicity.

Can oakleaf hydrangea take full shade? ›

Oakleaf Hydrangea (Hydrangea quercifolia)

There may not be a more versatile and well-loved shrub in the landscape than the hydrangea, and the oakleaf hydrangea is the king of them. It is true that the oakleaf hydrangea can handle full shade, but it also does equally well in part shade and even some full-sun locations.

Will oakleaf hydrangea bloom in full shade? ›

They are drought-tolerant once established, but often need supplemental watering the first two years, especially in sunnier spots. In the Triangle area, they thrive in the morning or filtered sunlight with shade in the afternoon. Oakleaf hydrangeas also perform well in all but the deepest shade.

Do oakleaf hydrangeas do well in shade? ›

As with all hydrangeas, we do recommend some sun each day for oakleaf types. However, they are more shade tolerant than other kinds in that they still bloom pretty well in deep shade conditions. They also don't have the stem strength issues that you may observe with other types.

Do oakleaf hydrangeas grow fast? ›

Oakleaf hydrangeas are available in various sizes from compact to large. The larger varieties can reach up to 12 feet tall and wide. These shrubs are relatively slow growing shrubs growing about one to two feet per year.

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