How and When Should I Deadhead Roses?

Deadheading — removing spent flowers before they set seed — is one of the most rewarding maintenance tasks in the rose garden. For repeat-flowering roses, regular deadheading significantly extends the flowering season by redirecting the plant's energy from seed production into producing the next flush of flowers. It also keeps plants looking tidy and reduces the risk of botrytis developing on rotting petals in wet weather.

When to deadhead

Deadhead repeat-flowering roses throughout the flowering season — from the first flush in early summer through to early autumn. The right moment is when the petals have fallen or are clearly fading and the flower head looks tatty. Do not wait until the petals have all dropped and the hip has begun to form; catching the flowers just as they fade maximises the time available for the next flush of buds to develop.

Where to cut

The most effective deadheading cut is made just above the first set of leaves that has five or more leaflets below the spent flower. Cutting here rather than just below the flower head encourages a longer new flowering stem to develop from a lower bud, producing a better-placed flower with a longer stem. Use sharp secateurs and make a clean cut at a 45-degree angle just above an outward-facing bud or leaf joint.

Floribunda roses

Floribunda roses carry multiple flowers in a cluster on each stem. As individual flowers in the cluster fade, snip them off individually with scissors or your fingers. Once all the flowers in the cluster have faded, cut the entire spent cluster back to the first full leaf below it. This produces the next flush of flower clusters rather than individual blooms.

Roses that should not be deadheaded

Not all roses should be deadheaded. Roses grown primarily for their decorative hips — such as Rosa moyesii, Rosa rugosa, and many species roses — should have their flowers left to develop into the autumn and winter display of red and orange hips. These are also an important food source for birds. One-time flowering shrub roses and ramblers also do not need or benefit from deadheading since they flower once and do not produce further flushes. Check the type of rose you have before removing all spent blooms.

Stopping deadheading in late summer

Stop deadheading repeat-flowering roses in early to mid-September. Allowing the last few flowers to develop into hips signals to the plant that the season is ending and helps it harden off and prepare for winter dormancy. Continuing to deadhead into autumn encourages the plant to produce more soft new growth that is vulnerable to early frosts.

Tools for deadheading

Sharp secateurs are ideal for most deadheading. A clean cut heals faster and is less likely to introduce disease than a ragged tear. For smaller-flowered roses or fiddly cluster heads, small scissors give more precision. Carry a bucket or trug to collect the removed heads — dropping them on the soil can allow botrytis spores to build up around the base of the plant.