To ask which of my plants is my favorite is like asking which of my children is my fave! A difficult topic to answer, but since I’m not in danger of hurting sensitive young egos, I’d have to say the oakleaf hydrangea is one of my favorites (Hydrangea quercifolia). The reason for this is that this is a plant that has four distinct seasons of appeal. That appeals to me since it saves me time, energy, and money. It rewards me in the spring, summer, fall, and winter once it has established.
Hydrangea quercifolia is a shrub that grows to be around six to eight feet tall, with a maximum height of ten to twelve feet. The huge, dark green leaves have silvery undersides and resemble the Northern Red Oak, from which it receives its popular name. It can be grown in zones 5 through 9.
Cone-shaped flowers can grow up to a foot in length. The blossoms start out white, then acquire a pink blush before turning red as the seasons pass. Single or double florets might be found.
Although the spring and summer are lovely and lush, I am looking forward to the warm days and cool nights of October and November, when the flowers change red and the foliage takes on a variety of yellow, orange, red, brown, and burgundy hues. In protected areas, the leaves last for a long time before falling to reveal an uneven branching structure of cinnamon-colored peeling bark. The contrast against a snowy white bedspread is breathtaking.
Oakleaf hydrangeas thrive in hotter climates, but they like some afternoon shade. It can be grown in full sun in its northern range. The more sun exposure you get, the more flowers you’ll receive, and the more stunning the fall color will be.
This shrub can survive drier soil than its mophead relatives, but not wet feet. Plant it in acidic, wet, well-drained soil supplemented with compost or other organic matter. It can be used as a specimen feature in the landscape or as a mass planting in shaded wooded regions.
Pruning is rarely essential, although it should be done after the flowers have faded and before August. Late summer and early fall are the best times to plant flower buds for the next year. By simply snipping off old flowers, you can “deadhead” them at any time. I like to leave the blossoms on the plant throughout the winter months so that I may enjoy them.
You can cut longer stems for flower arrangements before August if you’re cutting blossoms for arrangements. After that, only remove short stems to avoid losing next year’s blooms.
Oakleaf hydrangeas are generally pest and disease free. This is another bonus in my eyes because it means that plants will look and perform their best all year long without the need of chemicals (always a last resort in my book).
The double flowered variety ‘Snowflake’ is arguably the most popular. Its creamy white blossoms can reach a length of a foot.
In the spring, the foliage of ‘Little Honey’ turns golden, then chartreuse, then green, with a gorgeous burgundy red fall color.
Oakleaf hydrangeas are a perennial favorite in my yard. They’re lovely all year with stunning leaves, exquisite flowers, and fascinating bark, and they’re hardy in many regions of the country. They’re pest and disease resistant, bloom in the shade, and are very little maintenance. What more could we expect of a plant for our landscapes and gardens?
Can oakleaf hydrangeas grow in full shade?
Light. Oakleaf hydrangeas are understory plants in their natural habitat, so they like some afternoon shade, especially in hotter regions where nearly full shadow is required. Oakleaf hydrangeas can tolerate full sun in the north. The brilliance of the fall color may be reduced if there is too much shade.
Which hydrangeas tolerate the most shade?
For shady areas, oakleaf hydrangeas are the ideal choice. Their striking oak-shaped leaves give them their name! With soft spring buds, enormous blooms in summer, vivid fall foliage, and peeling winter bark, oakleaf hydrangeas are easy to enjoy in all four seasons.
How many hours of sun does an oakleaf hydrangea need?
The shadiest place in your yard can be bursting with flowers since these wonderful beauties can grow in complete shade, unlike other species of hydrangeas that require at least three to four hours of sun every day to bloom successfully.
What kind of light does an oakleaf hydrangea need?
Oakleaf hydrangeas are low-maintenance plants that only require the following:
- Site and sunlight – Oakleaf hydrangeas thrive in broad sun to moderate shade in northern climates. Give them morning sun and protection from powerful afternoon rays in southern zones.
- Rich, well-drained, somewhat acidic soil is ideal for oakleaf. Take the time to amend your soil around planting time if you live in a region with a lot of clay. Pennington Acts Quickly Gypsum aids in water penetration and drainage, as well as loosening compacted soil and encouraging proper root growth. Pennington UltraGreen Plant Starter with Vitamin B1 also aids in the reduction of transplant shock.
- Water – Oakleaf hydrangeas thrive in soil that is evenly moist but never saturated. Thoroughly water the soil, then check it by hand before watering again. Avoid overwatering to avoid root rot. Wait a few days if the soil is damp before checking again.
- Fertilizer At planting time, use a complete fertilizer like Pennington UltraGreen All Purpose Plant Food 10-10-10 to provide your hydrangeas with the nutrition they require. Each year, feed your oakleaf with the same fertilizer or a flower-enhancing fertilizer like Pennington UltraGreen Color Blooms & Bulbs Plant Food 15-10-10 in early spring. Then, four months later, in mid-summer, feed it again.
When should you plant oakleaf hydrangeas?
Oakleaf hydrangeas can be produced from cuttings from established shrubs, but they’re more commonly found in three-gallon pots at your local garden center, which can be put right into your yard, according to Zawojski. Planting should be done in the spring, early summer, or early to late fall, according to him. “Do not plant bushes during periods of extreme heat, such as July and August, or January and February,” he advises.
Why does my oakleaf hydrangea not bloom?
Oakleaf hydrangeas (Hydrangea quercifolia) are prized for their huge clusters of flowers and oak-like leaves. They are endemic to the southeastern United States. These plants are hardy in USDA plant hardiness zones 5 through 9, but they grow slowly and may not blossom the first season. When properly cared for, they bloom quite predictably once established. Inadequate water or poor trimming procedures are the most common causes of a lack of blooms. Both can be easily corrected.
How much shade does a hydrangea need?
- The optimum season to plant hydrangeas is in the fall, followed by spring planting. Before flowering, this shrub should have plenty of time to build a strong root system. Planting should not be done in the summer heat.
- Plant the shrubs early in the morning or late in the afternoon, when the weather is cooler and the plant is less prone to succumb to heat stress.
Where to Plant Hydrangeas
- The majority of hydrangeas flourish in fertile, well-draining soils with sufficient of rainfall. Compost is a great way to improve the quality of your soil.
- Hydrangeas, on the whole, like partial sun. In an ideal world, they’d get full sun in the morning and some afternoon shade to avoid the intense midday sun. This is especially true for wilting hydrangeas like the Bigleaf hydrangea (H. macrophylla). Some kinds are more tolerant of direct sunlight than others.
How to Grow Hydrangeas from Cuttings
Hydrangeas can be grown from cuttings with ease. They root easily, and the process is a fantastic way to learn about propagation. This is how you do it:
- Find a branch on a well-established hydrangea that is fresh growth and has not flowered. The stem will be less stiff and new growth will be lighter in color than old growth.
- Make a horizontal cut 4 to 5 inches down from the tip of the branch. Make sure your cutting has at least three to four pairs of leaves.
- Remove the cutting’s lowest pair of leaves and trim them flush with the stem. If you can afford it, remove more than one pair of leaves since roots develop more easily from these nodes. However, make sure there are at least two pairs of leaves at the cutting’s tip.
- Cut the remaining leaves in half, removing the tip-half, if they’re rather large. This keeps the leaves from slamming into the sides of the plastic bag you’ll later use to cover the cutting (to keep the humidity up).
- (Optional) Apply rooting hormone and anti-fungal powder to the leafless section of the stem (both available at a local hardware or garden store). This will promote rooting and prevent spoiling.
- Fill a small container halfway with moistened potting soil. Plant the cutting in the dirt, burying it until the first pair of leaves remain. To get rid of any air holes around the stem, lightly water it.
- Using a plastic bag, loosely cover the entire pot. Make sure the bag isn’t touching the cutting’s leaves, or the leaves may decay. (You can prop up the bag with chopsticks or something similar to keep it off the leaves.)
- Check on your cutting every few days to ensure it isn’t decaying, and only water once the top layer of soil has dried. In a few weeks, the cutting should have taken root! (If you feel resistance when gently pulling on the cutting, roots have grown.)
Does oakleaf hydrangea grow in Florida?
Oakleaf hydrangea thrives in fertile, well-drained soil, but it can withstand a variety of other environments. Choose a location with partial to practically complete shade. Oakleaf hydrangea may be grown in full sun in some climates, although it need at least some shade in Florida.
Because the plant has a tendency to sprawl and is known to put up new shoots, give it plenty of area to flourish. Try one of the more compact cultivars, such as ‘Pee Wee,’ if you have limited room.
Plant shrubs according to UF/IFAS instructions, and water them until they are established. Apart from watering during extended dry seasons and occasional pruning to maintain form, it should require minimal irrigation or other maintenance after that.
How long do oakleaf hydrangeas live?
Hydrangeas are long-lived shrubs that can live for up to 50 years if cared for properly. They prefer morning light but afternoon shade, and during the growing season, they require frequent watering. After the blossoms have faded, prune them in the fall so that they can develop on robust stems the following summer. Pruning hydrangeas when they’re flowering can harm them, resulting in a year of no flowers while the plants recover.