Few flowers define the British summer quite like roses – but there’s one thing every gardener should know to keep them blooming for longer. Whether scrambling over an arch, tumbling from a cottage garden border or standing proudly in a formal rose bed, their beautiful, fragrant blooms are a seasonal highlight.
But once those blooms start to fade, many gardeners are left wondering what to do next: should you start cutting back, keep tending the plant, or leave it alone until winter?
In reality, the weeks immediately after flowering are one of the most important times in the rose-growing calendar. A few simple maintenance jobs now help plants stay healthy, encourage repeat flowering in many varieties, and lay the foundations for an even better display next year.
Whether you're growing shrub roses, climbing roses, ramblers or floribundas, these are the key jobs to do once flowering finishes.
1. Deadhead spent flowers
The first and most important task is removing faded blooms. Deadheading encourages repeat-flowering roses to produce another flush of flowers instead of putting energy into producing hips (seed pods).
Using clean secateurs, cut each spent flower stem back to the first healthy leaf with five leaflets, making the cut around 5mm above an outward-facing bud at a slight angle. This encourages new growth to develop away from the centre of the plant, improving airflow and reducing disease.
If you're growing repeat-flowering varieties such as floribundas, hybrid teas or many modern shrub roses, regular deadheading throughout summer can keep blooms coming well into autumn.
2. Feed after the first flush
Flowering takes a huge amount of energy, so roses benefit from a summer feed once their first display has finished.
Apply a specialist rose fertiliser or a balanced slow-release feed around the base of the plant, following the manufacturer's instructions, before watering thoroughly. This helps support healthy new growth and encourages repeat flowering without producing overly soft stems.
Avoid feeding too late in the season, however, as tender new growth may not have time to harden before winter frosts arrive.
3. Keep watering during dry spells
Although established roses are relatively drought tolerant, they still appreciate a deep soak during prolonged dry weather, particularly while producing new buds.
Water thoroughly at the base of the plant once or twice a week rather than giving little and often. Keeping foliage as dry as possible also helps reduce the risk of fungal diseases such as black spot and powdery mildew.
Container-grown roses will usually need watering much more frequently than those planted in the ground.
4. Check for pests and diseases
Once flowering slows, it's a good opportunity to inspect your plants carefully.
Remove any yellowing or black-spotted leaves and dispose of them rather than adding them to the compost heap, as fungal spores can overwinter. Keep an eye out for aphids, sawfly larvae and signs of mildew, treating problems early before they spread.
Good air circulation around the plant, regular watering and prompt removal of infected leaves all help keep roses healthy naturally.
5. Mulch to lock in moisture
Applying a generous mulch around your roses after feeding helps conserve soil moisture, suppress weeds and improve soil structure over time.
Spread around 5cm of well-rotted garden compost, leaf mould or farmyard manure around the base of the plant, taking care to leave a small gap around the main stems to prevent rot.
As the mulch breaks down, it also provides a slow release of nutrients that will benefit the plant throughout the growing season.
6. Don't rush to prune hard
Many gardeners assume roses should be cut back heavily once they've finished flowering, but major pruning is best saved for late winter or early spring.
Apart from deadheading and removing any damaged or diseased stems, avoid reducing the plant dramatically in summer. Hard pruning now can encourage soft, vulnerable growth and reduce flowering later in the season.
Instead, wait until the dormant season to reshape the plant properly, when you can clearly see its framework and remove older stems where necessary.
Should you leave rose hips?
Not every rose needs deadheading. If you're growing species roses or varieties that produce attractive hips, you may prefer to leave some of the faded flowers in place.
Rose hips provide valuable food for birds throughout autumn and winter while adding ornamental interest to the garden long after flowering has finished.
Likewise, rambling roses that flower only once each year don't need deadheading to encourage more blooms, although removing spent flowers can still keep plants looking tidy if preferred.
With regular deadheading, consistent watering, a summer feed and a healthy mulch, your roses will remain vigorous throughout the season and reward you with stronger growth, healthier foliage and, for repeat-flowering varieties, even more beautiful blooms before autumn arrives.
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