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Autumn

Gardening Companion

Discover what to do in your garden every month with expert guidance and the right RYOBI® tools and tips for every season.

Autumn Garden Care Guide: Prepare Beds & Soil for Winter

Find out how to tidy beds, protect plants and prep your soil for winter with these essential autumn gardening tasks. Discover practical tips and cordless tools to make jobs easier with RYOBI®.

As autumn arrives, the pace of garden growth begins to ease and the weather turns cooler and more changeable. This is the ideal time to clear away tired plants and get everything in shape for the colder months ahead. With a few well-timed autumn gardening tasks, you can give your outdoor spaces the best chance to rest well over winter and burst back to life in spring.
In this guide, we'll explain what to do in the garden in autumn. We'll cover eight essential autumn tasks, from pruning to mulching, with practical tips and RYOBI® ONE+ cordless tool recommendations to make each job easier.

1) Cutting back and pruning

Autumn plant care is all about helping your garden stay healthy through the colder months. Knowing when to cut back plants is key – generally aim for early to mid-autumn (roughly six weeks before the first frost) to prune old stems and finish any trimming.
It's recommended to cut back most perennial plants in autumn to help keep your garden tidy and healthy. Many of these die back over winter before regrowing in spring. Removing dead stems and leaves in autumn can help reduce the risk of pests and plant diseases lingering in your garden over winter.
Cutting back garden favourites such as lavender, peonies and hardy geraniums is easier with the right tools. The RYOBI® 18V ONE+™ Cordless Secateurs are ideal for quick, clean cuts on stems up to 25mm thick, while the RYOBI® 18V ONE+™ Cordless 32mm Pole Pruner handles tougher branches up to 32mm with the press of a button, perfect for reaching into dense borders.
For larger clumps or hedges, the RYOBI® 18V ONE+™ Cordless 55cm Hedge Trimmer makes light work of overgrown foliage.
By tackling these essential autumn garden maintenance tasks now, you're setting your garden up for a healthy, vibrant spring.

2) Dividing and replanting

As part of your autumn garden preparation, this is a great time to divide established perennials. Early autumn often provides ideal conditions, with warm soil and cooler air helping plants settle in before winter arrives.
Look out for signs that a plant has become overcrowded. You may notice fewer flowers than usual, a bare patch in the middle of a clump or growth spreading into nearby plants.
Common plants that can benefit from dividing include:

  • Hostas
  • Peonies
  • Hardy geraniums
  • Daisies
  • Lavender

Choose a cool, overcast day and water the plant beforehand if the soil is dry. Carefully lift the clump using a garden spade or fork, then separate it into smaller sections, making sure each piece has healthy roots and shoots attached.
Remove any dead or damaged sections and replant the healthiest pieces at their original depth. Adding compost when replanting can help new divisions establish strong roots before winter.
Top tip: Dividing overcrowded perennials can help keep plants healthy, create extra plants for other areas of the garden and improve flowering in future growing seasons.

3) Bulb planting

This is prime time for bulb planting, a key part of autumn gardening that sets the stage for a vibrant spring display.
"Autumn is the key window for planting spring‑flowering bulbs, but timing within it does make a difference. Most bulbs should be planted between September and November, once soils are still workable but no longer warm from summer.
"Early‑flowering bulbs like daffodils, crocuses and snowdrops benefit from being planted in early to mid‑autumn, giving them time to establish strong roots before colder weather sets in. Tulips are slightly different – planting them a little later, in October or November when the soil has cooled, helps reduce the risk of disease and produces stronger, healthier displays in spring."
– Nathaniel Clarke, Product Manager at RYOBI

  • Choose a sunny, well-drained spot as bulbs dislike soggy soil. If your garden has heavy clay, improve drainage by mixing in compost and sharp sand.
  • Loosen the soil to about 20-30 cm deep and remove weeds to give bulbs the best start. A general rule is to plant bulbs at a depth of two to three times their height, spacing them a few bulb-widths apart.
  • For a natural look, plant in informal clusters rather than rows.

If you're planting lots of bulbs, digging individual holes can be time-consuming. That's where the RYOBI® 18V ONE+™ Cordless Garden Auger (Bare Tool) comes in handy.
Place bulbs with the pointed end up, cover with soil and water well if conditions are dry. A light mulch of compost or leaf mould can help retain moisture and protect against frost.
Top tip: In colder areas or where squirrels are a problem, consider laying chicken wire over the soil surface until spring.

4) Soil enrichment

As part of your autumn gardening routine, enriching the soil now is one of the most valuable steps you can take in preparing your garden for winter. After a long growing season, soil nutrients are often depleted. By adding organic matter in autumn, you give the soil food web time to break it down over winter, resulting in healthier, more fertile ground come spring.
Here's how to enrich your soil in autumn:

Apply organic amendments

Spread a 5-7 cm layer of well-rotted compost, leaf mould or aged manure over your beds. This organic blanket slowly releases nutrients and improves soil structure.

· Use only well-rotted manure to avoid burning plants or introducing weed seeds

· In perennial borders, top-dress and let worms and rain carry nutrients down

· In veg plots or annual beds, lightly fork it into the top 10–15 cm of soil

Boost nutrients and soil life

Organic matter provides a slow-release source of phosphorus, potassium and moderate nitrogen. It also feeds beneficial microbes and earthworms, improving soil health and fertility over time.

Improve soil structure and moisture balance

  • In sandy soils, compost acts like a sponge, holding moisture and nutrients
  • In clay soils, it helps break up compaction and improves drainage
  • The result is a more loamy, workable soil by spring

For bigger beds, the RYOBI® 18V ONE+™ Cordless Garden Cultivator (Bare Tool) is a great option. It mixes compost into the topsoil efficiently, saving time and effort. It's especially useful for open beds and veg patches, just take care around established roots.

Water and let nature take over

After applying compost or manure, water lightly (or let autumn rains do the job). If you've top-dressed without digging in, the layer also acts as a winter mulch, helping prevent erosion and nutrient loss.

5) Collecting seeds

One of the most rewarding and economical autumn gardening and plant care tasks is collecting seeds from your own plants. By saving seeds from annuals, perennials and vegetables, you can preserve your garden's best performers.

Here's how to collect and store seeds successfully:

Identify ripe seeds

Look for dry, brown seed heads or pods that are beginning to split naturally, as this is a sign that the seeds are mature. Common examples include marigolds, poppies, sweet peas, nasturtiums and sunflowers. Avoid collecting seeds that are still green or damp, as they may not germinate well and are more likely to rot in storage.

Choose a dry day

Harvest seeds during a spell of dry weather, ideally in late morning once any dew has evaporated. Use paper envelopes or bags rather than plastic, as plastic can trap moisture and lead to mould.

Collect carefully

Snip off seed heads directly into a bag or open pods over a tray or envelope to catch the seeds. For tiny seeds like those from poppies or foxgloves, gently tap the capsules to release them. Be sure to label each envelope or bag immediately. Once separated from the plant, seeds can be difficult to identify.

Dry thoroughly

Even if seeds appear dry, it's best to spread them out on paper in a warm, dry place out of direct sunlight for about a week. This ensures any residual moisture evaporates. Remove any chaff or damaged seeds before storing.

Store properly

Once fully dry, store seeds in paper envelopes or small glass jars in a cool, dark and dry place. If using jars, consider adding a silica gel packet or a pinch of rice to absorb any moisture. A drawer in an unheated room or a sealed container in the fridge can work well for long-term storage.

Note on hybrids

Keep in mind that seeds collected from F1 hybrid plants may not grow true to type and the resulting plants can vary significantly. For more predictable results, focus on saving seeds from open-pollinated or heirloom varieties.

Top tip: Easy seeds to collect now include marigolds, nasturtiums, calendula, poppies, cosmos, sweet peas, Nigella (love-in-a-mist), hollyhocks, lettuce, beans, peas, tomatoes and peppers.

6) Mulching and insulation

As part of your autumn plant care, mulching is one of the simplest yet most effective ways of preparing your garden for winter. A generous layer of organic mulch insulates plant roots from temperature swings and gradually enriches the soil as it breaks down.
Use organic materials such as shredded leaves, garden compost, bark chippings, straw or well-rotted manure. If you've got piles of fallen leaves, don't let them go to waste. A leaf vacuum, such as the RYOBI® 36V MAX POWER Cordless Leaf Blower Vacuum (Bare Tool), can help collect and shred leaves at the same time, creating an excellent mulch that can be spread around plants or left to break down into nutrient-rich leaf mould.
Apply mulch in a 5-7.5 cm layer over the root zones of perennials, shrubs and newly planted trees. Be sure to leave a small gap around plant stems to prevent rot. For tender perennials, add an extra layer after the first frost for added insulation. Straw or dried bracken is a traditional choice for protecting marginally hardy plants like agapanthus or banana roots.
Top tip: If you've got woody prunings or hedge trimmings from your autumn garden clean up, consider turning them into mulch using a garden shredder. The RYOBI® 36V MAX POWER Cordless Brushless Shredder is a great tool for this. It transforms garden debris into coarse mulch ideal for paths or around trees and shrubs, reducing waste and boosting your soil's health.

7) Container plant care

Container plants are more vulnerable in autumn and winter, as their roots are exposed above ground and more susceptible to cold. It's important to protect both the plants and their pots before temperatures drop.
Start by identifying tender plants that won't survive frost, such as pelargoniums, fuchsias, citrus, succulents and cannas, and move them indoors or into a frost-free space like a greenhouse or conservatory. Do this before the first hard frost, typically by late October in much of the UK.
Before bringing them in, check for pests and trim back any leggy or damaged growth. RYOBI® lightweight cordless shrub shears, are ideal for quick, tidy pruning. Once indoors, water sparingly and provide as much light as possible. In greenhouses, ventilate on mild days and use fleece to protect sensitive plants during cold snaps.
Even hardy evergreens benefit from occasional watering during dry winter spells. Finally, clear out seasonal displays and store empty pots in a shed to prevent cracking.
Top tip: For hardy plants staying outside, group pots in a sheltered spot, raise them on pot feet to improve drainage and wrap containers with bubble wrap or hessian to prevent frost damage.

8) Leaf clearance

Fallen leaves may look picturesque, but leaving thick layers on lawns or beds can cause problems. A key part of preparing your garden for winter includes regular leaf clearance to help prevent mould, rot and pest build-up.
Lawns suffer most under wet leaves, which block light and air, leading to yellowing or even dieback. In flower beds, damp leaf piles can harbour slugs and promote rot around plant crowns. Aim to clear leaves weekly during peak fall, especially from grass, paths and around delicate plants.
For smaller spaces, a compact cordless blower can make it quick and easy to clear leaves from patios, paths and flower beds. The RYOBI® 18V ONE+™ Compact Blower is ideal for lighter clearing tasks, while larger gardens may benefit from a more powerful option such as the RYOBI® 18V ONE+™ HP Cordless Brushless Whisper Blower.
If you'd prefer to collect leaves as you work, consider one of the RYOBI® blower vacuums. These tools gather and shred leaves at the same time, reducing their volume and making them easier to compost or turn into leaf mould.
Collected leaves can be composted or left to break down into leaf mould, a nutrient-rich soil improver that can be used around beds and borders. Avoid composting leaves affected by disease, as this can spread problems throughout the garden.

Autumn plant care FAQs

  • Do I need to fertilise plants in autumn?

    In most cases, it's best to avoid high‑nitrogen fertilisers in autumn, as they encourage soft, new growth that can be damaged by frost. Instead, focus on improving soil health with compost or organic matter, which supports plants naturally over winter and prepares them for spring growth.

  • How late can I garden in autumn before winter weather sets in?

    You can continue many autumn garden jobs until the first hard frosts arrive, which is usually late October or November in much of the UK. Tasks like leaf clearance, mulching and soil enrichment can often be done later than pruning or planting, as long as the ground isn't frozen or waterlogged.

  • Are cordless garden tools suitable for heavier autumn jobs?

    Yes. Modern cordless garden tools are designed to handle demanding seasonal tasks like cutting back, trimming hedges and clearing leaves. Using a shared battery system, like the RYOBI® ONE+™ system, means you can switch between tools easily, making autumn garden maintenance more efficient and flexible.

Make autumn garden jobs easier with RYOBI®

Autumn gardening doesn't have to be hard work – not with the right tools. The RYOBI® ONE+™ cordless garden tools range includes hedge trimmers, pruners and leaf blowers, all powered by the same 18V battery system. That means no cords, no fumes and complete freedom to move around your garden.
Explore the full range and find the perfect kit to help you power through your autumn garden prep with ease – and enjoy a well-earned rest while your garden recharges for spring.
Take a look at our learning hub for more guides to keep your garden looking its best, whatever the season.