Rose care in autumn: How to prepare your roses perfectly for winter

Autumn is a particularly important time for your roses. This is when it is decided how well they will survive the winter and how profusely they will bloom next year. With the right autumn care, you can help your roses prepare optimally for the cold season. In this comprehensive guide, you will learn everything you need to know about rose care in autumn.

Faded roses in autumn: don’t cut them, let them form rose hips

From September onwards, you should stop cutting off faded roses. This may seem counterproductive at first, but there is an important biological reason for it: the formation of rose hips signals to the rose that the growing season is coming to an end and that it needs to prepare for winter.

Why rose hips are so important

When rose hips develop, the rose shifts its energy from flower growth to winter preparation. The shoots mature, becoming woodier and more resistant to frost. This natural process is the same for most rose varieties and species.

Exceptions for certain rose varieties

Important note: Not all roses form rose hips equally well. Heavily filled varieties, such as many hybrid tea roses, often have sterile flowers and do not set fruit. With these varieties, you can still leave the last flowers of the year in place – even without rosehip formation, they will receive the signal to prepare for winter.

The following are particularly well suited for rosehip formation:

Wild roses and their hybrids
Shrub roses
Historic roses
Rugosa roses

Remove dead rose hips from repeat-flowering roses

With repeat-flowering roses (i.e. varieties that flower several times), you should remove any dead, dried-up rose hips from the summer. These old fruits can promote fungal diseases and unnecessarily sap the rose’s energy.

Here’s how to do it:

Only remove rose hips that are already dried out and brown
Leave fresh, green or reddish rose hips in place
Use clean secateurs
Cut back to the nearest healthy leaf

The great autumn pruning myth

Many amateur gardeners think they need to prune their roses heavily in autumn. This is a common misconception! The main pruning takes place in spring , around the end of February to the beginning of March.

What you can prune in autumn

In autumn, you should only carry out the following pruning measures:

Allowed:

Shorten very long shoots by about a third to protect the branches from wind damage
Remove diseased, damaged shoots
Cut out dead branches
For very tall shrub roses: Light pruning

Prohibited:

Radical pruning
Severe shortening of healthy, mature shoots
‘Tidying up’ for the sake of order

Why not prune heavily in autumn?

Pruning too heavily in autumn can cause the following problems:

The rose will sprout again (dangerous in frost)
Less winter protection due to missing shoots
Weakening of the plant before winter
Increased risk of frost at the cut sites

Watering correctly in autumn

The golden rule for watering in autumn

In autumn, the most important watering rule is: water less frequently, but thoroughly. The aim is to slowly accustom the rose to the drier winter season without letting it dry out.

Always water in the morning or evening and make sure that the leaves do not get wet when watering.

Important: Stop regular watering about 4 weeks before the first expected frost.

Fertilising roses in autumn: what you should bear in mind: No more nitrogen-rich fertilisers from August onwards

The most important principle: Do not use nitrogen-rich fertilisers from the end of August/beginning of September onwards! Nitrogen stimulates growth – exactly the opposite of what your roses need right now.

Permitted autumn fertilisation: Organic slow-release fertilisers (October/November)

A thin layer of compost around the rose
Well-rotted manure
These nutrients will only become available in spring

What you should avoid

Fresh manure (too rich in nitrogen)
Liquid fertilisers of any kind
Blue grain or other mineral NPK fertilisers
Over-fertilisation in general

Mulching: The perfect winter protection for your roses

Why mulching is so important in autumn

A good layer of mulch is like a warm blanket for your roses. It not only protects against frost, but also regulates soil moisture and prevents weed growth.

The best mulch materials for roses

Top recommendations:

Rose compost: Ideal, as it is specially formulated for roses
Leaves: Free and effective, but must be shredded first
Straw: Very insulating, but not to everyone’s taste visually

Less suitable:

Fresh grass is unsuitable in autumn as it adds nitrogen.
Bark mulch, as bark mulch makes the soil acidic, removes nitrogen and prevents the soil from aerating.

How to mulch correctly

Timing: Late October to early November, before the first heavy frosts

Layer thickness:

5-8 cm around the rose
Do not mulch directly against the stem
Leave a 10 cm gap between the mulch and the stem

Area:

Mulch the entire root area
For standard roses: in a circle approx. 60 cm in diameter
For climbing roses: the entire base of the stem

Additional autumn care tips for healthy roses

Disease prevention in autumn

Roses often suffer from fungal diseases such as rose rust and black spot. To prevent the rose from being attacked by fungal diseases again next year, fallen leaves must be removed regularly.
If rose leafhoppers are feasting on your roses, you should cut out heavily infested shoots in autumn and dispose of them in the household waste. The leafhoppers lay their eggs on the shrub in autumn to overwinter. You can recognise rose leafhoppers by the light spots on the leaves or by the fact that small white insects fly up when touched.
If necessary, use a biological plant fortifier, such as horsetail broth.

Prepare winter protection

For sensitive varieties:

Pile up soil or compost (15-20 cm high)
Standard roses: Protect the crown and grafting point with fleece
Climbing roses: Tie the shoots together

The autumn check: Your rose checklist

[ ] Leave faded roses in place for rosehip formation

[ ] Remove old rosehips from repeat-flowering varieties

[ ] Only carry out necessary pruning

[ ] Reduce watering frequency

[ ] Complete potassium-rich fertilisation

[ ] Apply a layer of mulch

[ ] Remove diseased foliage

[ ] Prepare winter protection

Avoid common mistakes in autumn care: The 5 biggest autumn mistakes

Radical pruning too late – weakens the rose before winter
Watering for too long – prevents natural winter preparation
Nitrogen fertilisation into autumn – makes the rose susceptible to frost
Mulching too late – ineffective when the ground is already frozen
Excessive ‘tidying up’ – rose hips and structure are important