Hydrangeas are low maintenance and give a splash of color to your yard all year long.
Endless Summer’s Ryan McEnaney offers the following advice for caring for the hydrangea kinds that flourish in Minnesota:
- NEVER prune them in the autumn. Wait until the spring to prune only the parts of the plant that did not survive the winter. In order to promote reblooming once summer arrives, you can deadhead wasted blossoms.
- Hydrangeas like dappled morning and afternoon shade. A completely shaded area should be avoided. And ensure that the soil has been prepared. When there is too much sand or clay, they struggle to survive.
- Water is good for hydrangeas, but not in excess. Instead of dusting them every day, give them a nice soak every couple of days. Be aware that afternoon wilt is common. Put your finger in the dirt to see whether they need water. Let it soak if it’s dry.
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In and around the Twin Cities, stores including Bachman’s, Gertens, Wagner’s, and Otten Bros. sell Endless Summer hydrangeas.
Cut back these shrubs in late winter before new growth begins
Shrubs that flower on young wood typically start blooming later than old-growth bloomers, beginning in June and continuing until the first frost, because they need to grow and set buds the same year that they bloom. As long as you avoid trimming when the flower buds are opening, these shrubs are understanding if it is not done at a specific period.
1. Trim the flowers all the way back for larger blooms.
These bushes can be completely removed from the ground in late winter or the beginning of spring. If cut severely like this every year, smooth hydrangeas will produce much larger flowers, but many gardeners prefer smaller blooms on stronger stems.
2. Maintain an old growth foundation to lessen flopping
Especially after watering from above or after a heavy storm, the branches of some hydrangeas frequently topple over from the weight of their blooms. Cutting the stems to a height of 18 to 24 inches will help to reduce this flopping by creating a strong framework for fresh growth.
Janet Carson is the University of Arkansas Cooperative Extension Service’s horticulture specialist.
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When ought hydrangea bushes to be pruned?
Depending on which group the plant belongs to, the timing and extent of pruning are determined:
Advice on Pruning for Group 1:
- As the days get shorter and the weather gets colder in the late summer and fall, buds for the following year’s blooms start to form.
- Typically, removing dead, diseased, or damaged branches is all that is required to preserve shape, size, and a healthy plant. Otherwise, gentle pruning ought to be practiced.
- In the summer, trimming should begin as soon as flowering ends, but no later than August 1. Pruning should not be done in the fall, winter, or spring because you risk removing fresh buds.
- Tip-pruning the branches in the spring as the leaves begin to appear can promote more numerous, smaller flower heads as opposed to fewer, larger flower heads.
Advice on Pruning for Group 2:
- On the growth of the current year, flower buds form.
- Early in the spring, as the leaves are starting to emerge, prune.
- Just above a node, prune branches back by half to a third.
- After that, prune any fragile or spindly branches.
- Minimal trimming encourages huge, strong bushes with many of tiny flower heads in H. arborescens. Hard pruning between 12 and 18 inches from the ground, or even all the way down, will result in fewer but larger flower heads that may flop if unsupported.
- For H. paniculata, remove the surrounding smaller wood while leaving the larger stems in order to establish a sturdy foundation.
Pruning may be connected to flower head size. Shoots will grow more vigorously and flower heads will be bigger and fewer with more rigorous trimming. Smaller but more numerous flower heads may result from less aggressive or tip pruning.
Consideration of hydrangeas’ mature size is the best piece of advise. Place them in a location where they won’t outgrow and won’t need a lot of pruning to keep them in check. Hydrangeas don’t need to be pruned precisely or often; as long as dead wood is removed, they will remain healthy and continue to develop and bloom.
Should I trim my hydrangeas before the winter?
If and when you prune is the key to happy, healthy hydrangea flowers. Of course, fertilizing and offering the ideal environment have a lot to recommend them. However, if you don’t prune properly, your efforts will be in vain. Deadheading is not the same as trimming. Pruning refers to more drastic cutting to preserve shape or remove dead growth. However, feel free to discard spent blossoms or cut fresh ones to use in arrangements.
Hydrangeas can bloom on either fresh wood or old wood, depending on the species. The wood from which they blossom determines whether and when to prune.
Old wood-blooming hydrangeas do not require pruning and benefit from it. They’ll blossom more abundantly the next season if you leave them alone. But feel free to deadhead or gently thin. Just keep in mind that while new growth may appear, it won’t bloom until the following season. In our region, four different species blossom on aged wood. Additionally, they are not limited to the hues displayed here.
Climb using suckers. On your wall or trellis, resist the desire to remove the dormant growth.
The flower heads are more conical in appearance, and the leaves are large and resemble oak leaves. It’s a pleasant surprise for a hydrangea when its leaves turn reddish-orange in the fall.
They are very comparable to lacecap types, but smaller and with more compact leaves.
Pruning should be done in late winter or early spring on hydrangeas that bloom on new wood. Trim back to two feet to prune to shape. The next season’s blossoms are produced by strong, fresh growth that is encouraged by trimming. In our region, there are two types that bloom on fresh wood. They are also not restricted to the colors displayed.
Oakleaf variants are not included in cone-shaped blooms. Keep the blooms on throughout the winter to provide interest; even dried out, they are quite lovely.
regarded as a wild kind. They often have smaller blooms and leaves than Bigleaf variants and are completely white. They enjoy full sun and can grow very tall.
Knowing whether or when to prune now will help you avoid the disappointment of a hydrangea that doesn’t blossom. Don’t forget that a robust shrub will produce more gorgeous blossoms if it has well-draining soil and good organic fertilizer. Come on in, and we’ll show you where to go to develop your green thumb.
How should I get my hydrangeas ready for the winter?
Protecting flower buds is the aim of winter hydrangea care. The simplest approach is to pile 12 inches or so of mulch made of chopped-up leaves or bark around the base of the plant. After the ground freezes in the late fall, set the mulch pile there. Plants can then be exposed in the spring, when the temperature starts to stay above freezing.
Should I remove the brown blooms on my hydrangea?
Your hydrangea shrubs’ blossoms appear to be withering or turning brown. No need to worry—this is merely a signal that it’s time to deadhead—remove the blossoms from the plant.
Deadheading hydrangeas doesn’t cause any damage to the plants at all. Flowering shrubs stop producing seeds when the spent blooms are removed, and instead focus their efforts on developing their roots and leaves. You will be doing your hydrangeas a favor by deadheading because this strengthens and makes plants healthier.
Do you prune hydrangeas in the spring or the fall?
Pruning is not typically thought of as one of the many gardening activities that may be done in the fall, despite the fact that there are several. It can be difficult to cultivate hydrangeas successfully in New Hampshire, and if you want your plants to blossom, there is frequently very little room for error in pruning.
Wait until Spring to prune hydrangeas
In New Hampshire, hydrangeas come in a variety of kinds, and each one has quite distinct growth patterns and pruning needs. Some plants only produce flowers on fresh growth, while others mostly produce flower buds on older wood. In any case, it is better to postpone all hydrangea pruning until spring. Hydrangeas, as with all other trees and shrubs, go dormant in the fall. Not much new growth is produced by them until the next spring. As new growth is more vulnerable to harsh cold at the location of wounds, plants that have been trimmed now run a higher risk of winter damage. Additionally, fall pruning may lessen the quantity of June blooms.
Considerations for pruning hydrangea species commonly grown in New Hampshire gardens
The gigantic blue mopheads or lacecaps known as bigleaf hydrangeas (Hydrangea macrophylla), which are familiar to most gardeners, form their flower heads at the tips of stems on old wood from the previous year. Although lower buds along the stem have the capacity to grow blooms as well, the hydrangea’s blossoming potential is decreased if those buds are died or damaged throughout the winter. Wait until new growth sprouts in the spring before pruning your bigleaf hydrangeas. Approximately 1/4 inch above the first group of live buds, prune the plant. A hint: the interior of living stems will be green, whereas the interior of dead stems will be brown. Cut completely dead stems flush with the base.
The three other hydrangea species that are frequently planted in Fresh Hampshire—oakleaf (H. quercifolia), panicle (H. paniculata), and smooth—all bloom on new growth. Before the emergence of the leaves in the late winter and early spring, remove wasted flowers and prune the plant to improve its general structure and habit.
In conclusion, there are a ton of other activities you can engage in to stay occupied in the garden during fall. Save the spring for hydrangea pruning.
Do I need to remove the Brown hydrangea leaves?
If newly emerging hydrangea leaves or flower buds are exposed to a late-spring frost or chilly winds, they will turn brown. A unexpected cold spell can harm the newly emerging buds and leaves, which are exceptionally delicate and susceptible to injury. This can cause the buds to turn brown and wither away.
Naturally, hydrangeas grow in protected regions under trees that block chilly winds and produce a more stable microclimate that allows the young flowers to open up without facing a serious risk of frost.
Hydrangeas’ newly formed buds and leaves can become mushy and their leaves can turn brown when they sustain frost damage.
Since it is more exposed to the environment, the outermost growth is typically the one that suffers from the worst damage.
Sadly, the harmed flower buds are therefore unable to bloom, and the freshly growing growth is probably not going to recover.
Frost damage to hydrangea flower buds and foliage is more common in exposed areas, so plant or move your hydrangea to a more protected area of the garden, close to your house, or close to some other plants and hedges.
Particularly hedgerows are great wind breakers since they shield your hydrangea from the elements and might lessen the effects of frost.
There isn’t much you can do to save flower buds or younger leaves after they turn brown. As a result, prune back to healthy growth any growth that has been harmed by the frost.
In contrast to the flower buds on the plant’s outermost part, which are naturally less protected, hydrangeas frequently have growing flower buds farther down each branch. These flower buds typically survive a frost.
This implies that your hydrangea can still bloom, but much later and with fewer flowers emerging. With a little patience, you should still be able to enjoy some lovely blooms throughout the Summer.
Do I trim my hydrangeas after the first frost?
A frost caused harm to my hydrangea. On the stalks, whatever leaves that were present were impacted and perished. I reduced all woody stems to the ground. At the plant’s base, green leaves are forming. I’m hoping the bush makes a comeback. Does it have any potential for growth and will it blossom this year? Garfield Heights’ Linda E.
I hope your hydrangea is now lush and bursting with blooms. Yes, a lot of hydrangeas started to leaf out early this year before being severely impacted by frost, which destroyed their leaves and stems. Fortunately, these plants can withstand being trimmed back to the ground in many cases. My damaged ones were overflowing with lovely flowers despite not having been trimmed down.
It’s a reasonable question to ask whether or not your hydrangea will blossom, and the answer mostly depends on the species.
White-bloomed, 3-foot-tall Hydrangea arborescens, an Ohio native, frequently has stronger stems and more blooms after being severely pruned back to the ground in late winter. “Annabelle,” “Incrediball,” and “Invincibelle Spirit” are some of its cultivars.
Hybrids of H. paniculata, commonly known as “panicle” or “Pee Gee” hydrangeas, can also be hard-cut in the late winter and will bloom on new growth. Given that Pee Gee hydrangeas typically grow to be 8 to 12 feet tall and broad at maturity, I highly doubt you’ve trimmed one of these plants all the way to the ground. They are beautiful and hardy shrubs that can benefit from a late winter pruning to promote blossoms and aid in the development of a full, strong habit. Or just leave them alone.
Pruning is rarely necessary for oakleaf hydrangeas (Hydrangea quercifolia). This plant won’t bloom this year if it is severely pruned, but it will probably live and look lovely the next year.
It is most likely Hydrangea macrophylla if yours has pink or blue flowers. These lacecap or mophead hydrangeas typically only bloom on aged wood. There won’t be any blossoms if the plant is trimmed back too severely or to the ground in late winter. Or if, as is sometimes the case in Northeast Ohio, the cold during a harsh winter killed off the stems and flower buds, there will be few or no blossoms. This is why magnificent displays of pink or blue hydrangeas may only appear in Ohio every three years.
For protection over the winter, wrap them in burlap or cover them with 1 1/2 inches of mulch. If you choose to prune them in the early spring, make sure to leave at least three sets of buds.
Fortunately, some new Hydrangea macrophylla varieties are being developed that bloom on fresh wood as well, which is great news for cold-climate gardeners! These continue to bloom throughout the most of the summer even after being cut (or frozen) to the ground. To promote new growth and flowers, prune them sparingly early in the growing season.
Reblooming cultivars like “Endless Summer,” “Penny Mac,” or the “Let’s Dance” series should be on your radar. Although any hydrangea can have its blooms removed in the fall, pruning them at this time of year is not advised.
During this time of year, the main garden chores are watering, weeding, and cleaning up. Many perennials can be revived by being pruned almost to the ground if they are genuinely looking terrible. When it’s hot and dry outside, water your plants thoroughly a few times per week.
Peonies, poppies, and bearded iris should all be planted between now and mid-September.
Transplant or divide perennials with spring and summer blooms when the days begin to cool. To provide time for plants to grow before winter, try to finish this by early September. Late in the summer, when I divide plants, I usually chop down the foliage by half and water thoroughly. Select days that are expected to be cloudy, rainy, or cool.
Houseplants in pots should be pruned, divided, and replanted right away to give them time to regenerate before being brought back inside.
For drying, gather flowers and herbs. Cut back tomato plants. Harvest and compost any spent produce that cannot be used in the kitchen. Prepare bare regions for transplanting or reseeding.
For fall color, plant garden chrysanthemums, sternbergia, colchicum bulbs, and autumn crocus. The time to order spring bulbs is now.
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