Pruning should be done as soon as the blooms begin to fade. This year, Ellie’s plant did not blossom, so she will have to rely on viewing other plants in the vicinity. A little pruning in late winter or early spring to begin reshaping may be her best option, followed by a more radical cutting back after she enjoys the blooms next season.
When should you cut back oakleaf hydrangea?
The oakleaf hydrangea is a deciduous, blooming shrub that is great for borders, bulk planting, and foundation planting. The flowers are pink, pastel purple, and creamy white in color and bloom throughout the summer and fall. Although this hydrangea doesn’t require much pruning, a little cut once a year will keep it looking tidy. Oakleaf hydrangeas bloom on the previous season’s growth, so prune in the fall or early winter after blossoming.
Can you trim an oak leaf hydrangea?
Growing oakleaf hydrangeas should not be difficult if you planted your hydrangea appropriately. These drought-tolerant native shrubs are completely disease- and pest-free once established.
According to oakleaf hydrangea information, the plants can reach a height of 10 feet (3 meters) and a spread of 8 feet (2 meters). If you haven’t given the hydrangeas enough room to grow to their full potential, you may need to start pruning them to keep them small enough for the space.
Oakleaf hydrangeas can be pruned to help them grow into a full shrub. If you want to do this, pinch back new growth or cut previous growth. Don’t prune these bushes before they bloom because they blossom on the previous year’s growth. This allows them to develop new buds, which will blossom the following summer.
What happens if you don’t prune hydrangeas?
Hydrangeas that bloom on old wood don’t require pruning and benefit from it. They’ll blossom more freely the next season if you leave them alone. Just keep in mind that while new growth will appear next season, it will be devoid of blossoms.
What happens if you cut hydrangeas down to the ground?
The oakleaf hydrangea blooms in whites and creams with cone-shaped flowers. Its leaves are deeply cut and resemble those of an oak tree. It’s a hardy shrub that thrives in both full sun and full shade.
H. quercifolia blooms on old wood, or growth from the previous season. Unless it is injured or overgrown, it does not require pruning. Remove the dead flower heads slightly beneath the bloom if you want to clean it up.
Remove a few of the oldest, thickest stems all the way to the ground if your oakleaf hydrangea is very old and woody. However, because it blooms on old wood, cutting the entire plant to the ground will result in the loss of an entire season’s worth of blossoms.
How do you prepare oakleaf hydrangeas for winter?
The most basic way is to pile shredded leaves or bark mulch around the base of the plant to a depth of about 12 inches. Place the mulch mound in place when the ground freezes in late fall, and then expose the plants in the spring when temperatures begin to rise above freezing.
Do oakleaf hydrangeas bloom on old wood?
Some hydrangeas, like Limelight green hydrangea, bloom every year on new wood. Oakleaf hydrangeas, on the other hand, bloom on old wood from the previous year.
Before you enjoy the blooms, the buds that will become beautiful oakleaf flowers form on stems in the summer. Always prune oakleaf hydrangeas as soon as they complete flowering to prevent the formation of next year’s buds. If you wait too long, you can lose all of the bloom buds you’re hoping for.
An oakleaf hydrangea may provide beauty to your house and landscape every month of the year, whether you grow in a little space or have plenty of room. Pennington is here to help you take your landscape and garden to new heights all year long with timely advice and superior lawn and garden products.
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.
What does an oakleaf hydrangea look like in winter?
If not removed, hydrangea flower heads turn dry and brown in the fall and will stay that way throughout winter. Hydrangeas shed their leaves in the fall as well, but their brown stems remain upright unless clipped.
Divide an 8- to 12-inch segment of stems and roots from the main bush using a sharp garden spade. To cleanly sever the roots, dig the spade into the root mass. A dirt shovel should be pushed into the soil slightly beyond the margin of the separated clump’s root mass. With the shovel, lift the divided clump and set it on a piece of plastic sheeting. To keep the roots and soil intact, pull the plastic sheets up around the root mass. If the clump can’t be replanted right away, pot it up in a container and keep it wet.