How Big Does Oakleaf Hydrangea Get

At maturity, the oakleaf hydrangea reaches a height of 46′ and a spread of 46′.

Oakleaf hydrangeas grow to what width?

The parade of dark green leaves that lasts all year long on oakleaf hydrangeas begins in May. The oak-like leaves can spread up to 12 inches broad, depending on the cultivar. Long, cone-shaped clusters of flower buds decorate summer vistas with color. Large, brilliant florets and tiny, bud-like blooms are combined in the exquisite clusters. Contrary to mophead hydrangeas, oakleaf bloom color is unaffected by soil pH.

Oakleaf hydrangea leaves put on a show of color as fall approaches that rivals that of blazing maples. There are brilliant hues of red, purple, orange, gold, and bronze. The spectacle continues into the winter in certain regions. This native beauty’s cinnamon-brown exfoliating bark becomes visible once the leaves fall. Against the snow, the peeling strands stand out.

How much room is required by an oakleaf hydrangea?

Follow these instructions to plant, spacing 4 to 8 feet apart depending on the type. Check the tag on your plant for details on recommended practices.

• Create a hole that is 2-3 times bigger and slightly deeper than the root ball.
• Lick up the soil surrounding the plant’s roots after removing it from the nursery pot.
• Plant it so that the top of the root ball is just visible above the soil line.
• To get rid of air pockets, backfill the hole with soil and lightly tamp it down. Water wisely.
• To keep moisture in and control weeds, use a 2- to 3-inch layer of mulch made from finely chopped bark.

Soil: To prevent root rot, plant in slightly acidic soil with good drainage. Use an exceptional all-purpose potting mix for your containers.

Watering: For optimum flowering and healthy growth, plants require regular watering. Maintain a uniformly wet but not waterlogged soil. To establish robust roots, deeply water the soil. The oakleaf hydrangea may withstand drought better than other varieties.

Apply a granular fertilizer made specifically for trees and shrubs in the early spring as directed on the container. Reapply every year.

Apply compost, shredded bark, or other organic material around plant bases every spring as mulch. After the ground freezes in the fall, pile 6 to 8 inches of mulch around the base for protection over the winter in colder climates. Early in the spring, remove the mulch to let the soil warm up.

Where should an oakleaf hydrangea be planted?

Care for Oakleaf Hydrangeas The optimal growing conditions for this shrub are full sun or partial shade, rich, slightly acidic soil, and good drainage. It prefers damp soil, therefore a substantial layer of mulch placed over the root zone will help keep the soil there moist.

What is the duration of an oakleaf hydrangea’s bloom?

All around our land, we have grown oakleaf hydrangeas in both bright and shaded areas. It seems to operate best in the morning sun with afternoon shade. The oakleaf has the advantage of thriving in more drier environments than its cousin hydrangeas. While oakleaf hydrangeas grow with relatively little care, the rounded, vivid mopheads suffer in our sandy soil and frequently wilt on hot days.

Because of rumors that the leaves resemble some oak foliage, Hydrangea quercifolia is often known as oakleaf hydrangea. They certainly look lovely in the fall when they change dramatically from red and orange to burgundy. It is a deciduous shrub that can reach a height of 4 to 6 feet and is upright and very full. It works well as a highly striking specimen plant, a sunny border, or a forest garden that receives some shade.

It is native to the United Regions and is frequently seen in the deep south and neighboring coastal states. On one of his numerous botanical expeditions south in the middle of the eighteenth century, botanist William Bartram is reported to have recorded this species. One of just two native hydrangeas exists. It is quite hardy here in South Jersey and blooms best in regions with moderately warmer summers.

Like other plants, it thrives when planted in good soil, mulched, and watered as needed. The soil needs to be well-drained even if it likes wetness since it cannot endure a stagnant, muddy environment. The ones we have on our property are in our sandy loam, in part shade, and are covered in leaf mulch from our enormous trees every fall, despite the fact that it is believed to flourish in damp soils. They definitely value a summer mulch because it keeps the soil moist. Feed in the spring once a year.

Since they blossom on old wood, if you must prune one back, do it right away to give new growth enough time to develop and bear buds for the following year.

Sally Castellini, owner of Pink Dahlia Vintage Floral Designs in Milliville and a vendor at the Collingswood Farmers Market, discusses how succulent plant terrariums have grown in popularity as wedding décor and walks viewers through how to set one up.

They are adored for its sizable white flower pyramidal bunches. I particularly appreciate picking the big blooms and putting a few in a big vase so I can enjoy them for a long period. They can be harvested and preserved later in the season to enjoy all winter long in a vase or on a wreath when they are almost completely dry on the plant. On mature oakleaf hydrangeas, the bark occasionally peels away to reveal a rich brown covering that looks lovely in the winter.

They are extremely colorful for around nine months out of the year and hardy from zone 5 to zone 9. Despite starting out green, they produce vibrant foliage in the fall. The blossoms start off white in mid-June and gradually turn pink and pastel mauve until drying in the fall.

For extended summer flowers, there are several really attractive hydrangeas that can be planted. Knockout roses, butterfly bushes, Weigela, clethra, kerria, bottlebrush buckeye, and abelia are a few examples of companion plants for mid- to late-summer blooming.

Look into these if you’d want a few plants that bloom continuously throughout the season. The task of planting for continual bloom is definitely worth the effort. An oakleaf hydrangea can be a wonderful place to start because it will bloom from now until the end of the season.

What color are oakleaf hydrangeas in the winter?

When you say the word “hydrangea,” most people immediately picture the Hydrangea macrophylla mophead and lacecap varieties. These magnificent bushes are highly well-liked and frequently blossom in summer landscapes across the nation. The oakleaf species of hydrangea (H. quercifolia), a less popular variety with a distinctive appearance and texture, is a hydrangea. Oakleaf hydrangeas also produce enormous, spectacular flower clusters, much like the mopheads and lacecaps. However, that is about where the similarities between the oakleaf hydrangea and its relatives end.

The oakleaf hydrangea differs from the other members of the genus in a number of important ways.

• Flowering behaviorOakleaf hydrangeas produce inflorescences, or long, cone-shaped clusters of flowers (flower heads consisting of a group or cluster of flowers arranged on a stem). The inflorescences are made up of both conspicuously fertile and ostentatious infertile blooms. The mophead hydrangeas, on the other hand, feature globe-shaped clusters of sizable florets. The flattened bloom heads of lacecap hydrangeas are flanked by larger male flowers and smaller female flowers.
• Foliage

Oakleaf hydrangea foliage is big (4 to 12 long and wide, depending on the selection), lobed, and coarsely textured, in contrast to the leaves of H. macrophylla species, which tends to be moderately sized, oval or heart shaped, and smooth textured. The botanical name of this shrub, quercus folium, is derived from the Latin words quercus (oak) and folium, which describe the foliage as having a form resembling that of an oak leaf (leaf).

• Origin The 23 identified species of hydrangea that make up the genus are primarily Asian in origin. The smooth hydrangea (H. arborescens) and oakleaf hydrangea are the only two exceptions that are indigenous to this nation. All of the states in the southeastern region of the United States, from North Carolina south to Florida and west to Louisiana, are home to the native oakleaf hydrangea.
• Fall hues

The only plant in the genus that has any discernible fall leaves colors is the oakleaf hydrangea. The oakleaf hydrangea is still fully covered with gorgeous deep crimson to purple leaves in November and December, when the majority of other deciduous plants have lost their foliage. These leaves last well into the winter.

• cultural prerequisites In general, all hydrangeas prefer moist, well-drained soil. The oakleaf species can endure drier soil and more sun than other species in the genus, albeit, once established.

A rounded, deciduous shrub with a mounding form from the ground up is an oakleaf hydrangea. Large clusters of blooms are supported by strong, sturdy stems above typically dark green on top and yellowish green underneath foliage. The stems have appealing tan or cinnamon colored bark that falls off in small pieces. This understory shrub is typically found growing in the wild beside streams, on forested hillsides, and in the shade of mixed hardwood trees. It is an ornamental plant that thrives in a natural or groomed woodland setting that is somewhat shaded, particularly with morning sun and afternoon shade. Some varieties are hardy to zone 5, and it is hardy from zones 6 through 9.

On the wood from the previous year, magnificent clusters of creamy white or pink flowers bloom, depending on the cultivar. While just a few varieties produce double flowers, the majority of them do. The flowers are produced in inflorescences that are 6 to 12 inches long and 3 to 5 inches broad, and they last for at least four to six weeks before turning tan or deep pink. Through the autumn, the blossoms provide interest to the plant by drying in situ.

The list that follows, while not exhaustive, describes a variety of oakleaf hydrangea choices, as well as their typical sizes and floral arrangements. While a few varieties can reach heights of 12 feet or more, the majority of cultivars are medium-sized, with an average height of 5 to 8 feet. There are several compact cultivars that grow to a height of 4 feet or less and with proportionately smaller leaf and flower clusters available for gardeners with tiny gardens.

• 12′ tall by 12′ wide is “Alice.” This is a wise choice for bigger gardens that have the space for a shrub of this size. The enormous white blossoms eventually turn tan in the late summer after maturing to rosy pink. The State Botanical Garden of Georgia’s gold medal award for 2000 went to “Alice.”
• Alison is 8 to 10 feet tall. Despite being comparable to “Alice,” this cultivar is a touch wider and has inflorescences that are held more upright. By the end of the summer, the huge white bloom clusters have turned pink and are now tan.
• Harmony is 10′ broad and tall. This variety has clusters of enormous, many, double, sterile blooms. Branches can bow under their weight. This cultivar, which is extraordinarily lovely but not frequently seen in nurseries, may be a challenge due to the flowers’ weight.
• 6′ tall by 6′ wide is “Amethyst.” Dr. Dirr created a small cultivar whose blossoms change from white to rose. As they become older, “Alice” and “Amethyst” both develop extremely deep pink inflorescences.
• 5 to 6′ tall by 5 to 6′ wide is the “Gatsby Gal.” This, along with the next two choices, are from Proven Winners’ 2016 release of the Gatsby series. Flowers on the shrub ‘Gatsby Gal’ are upright, giving the impression that they are larger than the shrub’s relatively small size.
• Gatsby Moon is 6 to 8 feet tall and 6 to 8 feet wide. The inflorescences are composed of closely spaced, extremely full double flowers similar to those on “Harmony,” as previously mentioned. Instead of turning pink with age, the petals become white to green.
• Gatsby Pink is 6 to 8 feet tall and 6 to 8 feet wide. The enormous, protracted flower heads quickly transition from white to a deep shade of pastel pink.
• Queen of Hearts measures 6.5″ high by 9″ broad. This cultivar was created by the shrub breeding program of the U.S. National Arboretum through the hybridization of the cultivars “Snow Queen” and “Pee Wee,” the same cross that also gave rise to the cultivar “Ruby Slippers” that is detailed below. The blossoms start out white and gradually turn a rich pink hue.
• 6′ tall by 6′ wide is the “Snow Queen.” ‘Snow Queen’ can withstand brighter conditions and retains its single-flowered inflorescences more upright than other varieties. The 2012 Royal Horticultural Society Award of Garden Merit was given to it.
• 7′ tall by 7′ broad is “Snowflake.” This cultivar, like the others that won the Royal Horticultural Society’s Award of Garden Merit in 2012, has a longer bloom season. It has double hose-in-hose flowers on very long (15 inch) spikes that stay on the plant for a very long time. The blossoms progressively turn pink as they deteriorate, then light tan.
• Little Honey measures 4′ high by 5′ broad. The golden yellow spring foliage, a sport of “Pee Wee,” gradually darkens to chartreuse green in June and then becomes red in the fall. For optimal results, give it morning sun and afternoon shade. Compared to other oakleaf hydrangea species, the white blooms’ 5 to 6-inch long, cone-shaped inflorescences are diminutive.
• ‘Munchkin’

4.5′ broad by 3′ high. The shrub breeding program at the U.S. National Arboretum in McMinnville, Tennessee, created Munchkin. It is the perfect option for modest home landscapes because of its compact form and dense plant habit. The flowers start out white and progressively change to a medium pink color.

• Pee Wee is usually 5 feet tall and 4 feet wide, but they can get bigger. Until quite late in the growing season, this upright, compact variety retains its deep burgundy and purple leaves before losing them. The leaves typically have 3 to 7 lobes and are on average 5 inches long. In the late summer, the flowers become tan.
• “Ruby Slippers” are 3.5″ high and 5″ broad. This mounding, semi-dwarf cultivar was created by the shrub breeding program of the U.S. National Arboretum through the crossbreeding of the cultivars “Snow Queen” and “Pee Wee.” The flowers begin as white but quickly change to a delicate pink hue, which later in the summer intensifies to rosy red.
• Sikes Dwarf is 2 to 4 feet tall and 3 to 4 feet wide. This compact collection works well in container gardens as well as smaller areas. The sterile florets in the flower clusters, which gradually turn light pink as they ripen, conceal the fertile blooms. ‘Sikes Dwarf’ has an asymmetrical spherical shape and an open plant habit.

The soil that Oakleaf hydrangea prefers has a pH of 5.06.5 and should be organic, fertile, well-drained, and slightly acidic. Once planted, it is drought hardy, though it does need water in extremely dry conditions. Effective drainage is crucial. Although the plant prefers moist soil, wet feet are intolerable.

Sunlight

In either complete or partial shade, this shrub can flourish. But it functions better when it receives at least a half-worth day’s of sunlight or more, which results in a better floral show, stronger stems, and more vibrant autumn foliage. Some varieties can tolerate a sunnier location. On the other hand, plants under heavy shadow will produce fewer blossoms but bigger leaves.

In general, Oakleaf Hydrangea trimming is little to nonexistent. Pruning should be done soon after the shrub flowers if it needs to be shaped or shrunk. In late summer, this shrub produces bloom buds for the following year. Or put another way, it grows on aged wood. Any other time of the year will result in the loss of the flowers for the following year when pruned.

Pests The only insects that occasionally harm this plant are spider mites and aphids. Deer will nonetheless munch on this plant, especially the sensitive, young spring foliage, so either use deer repellent or put up a physical barrier to protect it.

Propagation

Cuttings of the shrub’s stems can be used to multiply it. Layering is another method of plant propagation that can be used because the branches are low to the earth.

When used as a solitary specimen, a backdrop for smaller shrubs, bulbs, or perennials, a part of a mixed border, a deciduous hedge, or as part of a mass planting, oakleaf hydrangea is a multipurpose shrub that is bold yet graceful.

If there is a drawback to oakleaf hydrangeas, it is that a cautious gardener can find their enormous, rough-textured foliage intimidating. Rest certain that the foliage complements plants with smaller leaves extremely well. For instance, the contrast created by evergreens’ finer needles or scaly branches is appealing. Boxwoods’ smaller, more compact leaves and more formal round shape contrast nicely with the more relaxed shape of oakleaf hydrangeas. Oakleaf hydrangeas go nicely with taller ferns like ostrich or cinnamon ferns as well as shorter grass-like plants like liriope.

Easy-care Oakleaf hydrangea is particularly useful in the landscape since it provides year-round appeal. It has an immediate effect in the spring when its striking foliage first appears. Large, persistent clusters of creamy white or pink blooms stand out against the dark green leaves in the summer. Many cultivars develop to a medium pink or deep rose color over time. The oakleaf hydrangea especially shines in the fall with its deep, burgundy/purple foliage that lasts all the way through the winter. The pale brown or brownish dried flower heads provide more appeal. The tan bark’s exfoliation adds a new tactile dimension to the snowy scene in winter.