What to cut back, prune and deadhead in August – full guide08/20/2021
Summer gardening tips
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As we close in on the long-awaited bank holiday weekend which marks the end of August, it’s the perfect time to get out in the garden and tend to your fully-flowered plants for a good prune. Whether you have long climbing branches that need a cut back or a few tired-looking flowers that need a light deadheading, there are plenty of plants that require attention this month – but what should you be focusing on?
Pruning your plants correctly is the key to keeping them in good stead, producing healthy growth year after year.
What’s the difference between pruning, cutting back and deadheading?
Knowing the difference between cutting back, pruning and deadheading is also something to bear in mind when working out where to start in your gadern this August.
This one is quite self-explanatory as it involves the physical removal of dead ‘heads’ of the plant – in other words, the spent blossoms.
Not all plants need deadheading so always do your research when tending to your plants and be sure to check which part of the plant needs ‘deadheading’ – this could vary between blossoms, buds and stems.
Pruning involves removing worn growth – similar to deadheading although this is done by pruning back to fresh growth.
Pruning is a form of ‘tough love’ for your plants and may leave them looking bare but it is worth it in the long run for a bold and populated plant.
This type of gardening can be used to encourage a more voluminous, stockier plant.
Cutting back can be done to tall-growing plants like asters which have long stems and can easily break when the plant reaches full growth.
Plants to tend to in August
Tending to your plants in August will ensure you get the most out of their growth when it is at its most efficient point.
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Redirecting the energy of your plant to the roots will encourage further vegetation to be produced rather than being wasted on seeds in old flowers.
- Perennials – focus on tired looking geraniums and alchemilla .
Cut back delphiniums which can look overly spent in the late summer to rejuvenate the bold blue hue of these buttercup relatives.
Fruit trees – apples, medlars and mulberries produce a crop on short flowering spurs along the bottom half of branches, Gardeners World recommends cutting back vigorous growth made in spring to encourage more productive growth to develop.
Wisteria – if left to overgrown it will cease to flower so a twice-yearly prune is essential for this delicate purple flower.
Climbers – as well as Wisteria, pay attention to honeysuckle, jasmine, star jasmine as these are prone to becoming a tangled mess by the end of summer.
Spring flowering shrubs – tackle shrubs that have flowered earlier in the season to maintain their shape and encourage new growth for next year.
- Focus on deutzia, flowering quince, forsythia, philadelphus and lilac.
Hedges – following the end of bird nesting season, hedges should be safe to prune in August but always make sure you don’t have a nest before going ahead and pruning.
- Bedding plants
Lavender – remove spent flowers and trim back into good shape to keep your perfumed plant looking vibrant the following year.
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