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Wondering how to deadhead hydrangeas? Known for their beautiful blooms and leafy foliage, the much-loved hydrangea can be spotted in planting schemes far and wide thanks to its easy-to-grow qualities and long-lasting color.
The pretty shrubs, which come in all manner of colors – from blue to white and pink to green – are most often used as a border plant in gardens, as they flower throughout summer and well into autumn.
Deadheading is an important step in pruning hydrangeas, and knowing how to do it properly is essential to maintain if not enhance the health of your plants.
To get started, you’ll want a pair of the best secateurs or pruning shears like Felco’s Model 12 secateurs (opens in new tab), some good gardening gloves, and a place to contain the heads of the flowers.
When it comes to deadheading a hydrangea, you need to take into consideration where you cut and the best time to do it. To find out all this and more, we spoke to National Gardening Bureau (opens in new tab)member, Lorraine Ballato.
Ballato is the author of Success With Hydrangeas, A Gardener’s Guide (opens in new tab) so knows all the ins and outs of growing hydrangeas and keeping them looking their best.
Like with any of the best garden planting schemes, a pretty hydrangea can make a big difference to your outdoor space. So if you want to keep this floral growing (and growing) and stimulating new growth – that’s where deadheading comes in.
But first, when should you deadhead your hydrangea? And what does it do?
Ballato tells us, ‘All cutting stimulates a plant (any plant) and hydrangeas need to be left alone after about August 1.’
‘If it’s done at the wrong time, the gardener could be doing more harm than good. During the last few weeks of the season, they are working on making flower buds for next year. Distracting them by cutting gets in the way of them making those buds and initiating dormancy.
‘If you must deadhead, do it as soon as the flower fades and stop deadheading by early August. Just know that when you deadhead, you are possibly depriving yourself of some fantastic color changes that can take place in the later season as many hydrangea flowers morph into soft shades of pink, green, lavender, etc. It’s called “antique season” and it is stunning! Further, many newer hydrangeas intentionally change color from pale green to white to pink and rose as the season progresses.’
How to deadhead hydrangeas
There are many types of hydrangeas. Bt the most commonly grown in backyards seems to be the Hydrangea macrophylla – lacecaps and mopheads. You might also see climbing varieties. But no matter the type you have blossoming in your front or back yard, you can follow the same steps.
1. Ensure you have clean and sharp secateurs
If you want to achieve perfect pruning every time, Ballato explains, ‘You must have a sharp set of pruners, and disinfectant to clean your pruners when you move from plant to plant.’
This will stop any rust to the blades of your secateurs and stop any infection from spreading from plant to plant.
2. Trim hydrangea foliage
Have the leaves on your hydrangeas started growing out of control? Do they look a bit unruly? Or have they started taking over more space than you want them to?
Then why not trim back any foliage and unwanted leaves growing on your shrub?
‘You can start anywhere on the plant,’ Ballato says. ‘It doesn’t make a difference. But it does make a difference where on the stem you cut.’
3. deadhead your hydrangea
Now you’re ready to prune your plant.
When you deadhead any hydrangea, make the cut directly below the flower. Ballato explains, ‘Look for the first set of leaves that are opposite one another and make the cut directly above that set.’
(Image credit: Lorraine Ballato)
What happens if you don’t deadhead hydrangeas?
(Image credit: Leigh Clapp)
Worried about deadheading your shrub and causing more harm than good? Don’t panic. According to Ballato, choosing to forgo deadheading your hydrangea isn’t necessarily a bad thing.
She says, ‘In fact, gardeners that leave the flowers on get to enjoy some winter interest in their gardens as the snow and ice can catch the sun and simply glisten. Also, the dead flower acts as an umbrella to protect the rest of the plant against hard winter ice and winds.’
Can you cut hydrangeas for bouquets?
Ballato says, ‘Cutting fresh flowers for bouquets is definitely on your agenda for late July. The flowers can grace your home or office in any number of ways. Maybe a bouquet will brighten up someone else’s day. For those bouquets, you will probably cut further down on the stem. Just be sure to cut above a pair of opposite leaves as already discussed.’
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Originally Appeared Here