Autumn Tasks to Prepare the Garden for Winter

Autumn is a season of quiet transition. The garden slows, but this is no time to step back entirely. A handful of well-timed jobs now will protect plants, soil and pipework through the coldest months, and leave you with a garden that springs back stronger.

Clear Fallen Leaves and Tidy the Borders

Fallen leaves are a gift, but only if you use them wisely. A thick layer left on a lawn will block light and trap moisture, encouraging moss and disease. Rake little and often, especially after wet and windy weather, rather than waiting for a single mammoth session. On paths, steps and decking, sweep leaves promptly — they become dangerously slippery once they start to rot.

• Rake lawns weekly and add leaves to a leaf mould bin or black bin bags pierced with a few holes.
• Clear gutters, drain covers and gullies so winter rain can drain away freely.
• Leave a thin scatter of leaves on empty borders, but pull them back from the crowns of alpines and small perennials.
• Use a light rake or leaf blower on gravel and gravel paths, then collect for compost.

If you have room, store leaves separately from other compost. After a year or two they break down into crumbly leaf mould, one of the best soil conditioners you can make. It is worth the wait.

Plant Spring Bulbs in Generous Drifts

Autumn is prime bulb-planting time, and the effort pays back tenfold when colour returns in spring. Daffodils, crocus, snowdrops, alliums and tulips can all go in now. As a rule of thumb, plant each bulb at three times its own depth. In heavy clay, add a handful of grit to the planting hole to improve drainage; in sandy soil, mix in some compost to hold moisture.

• Plant in odd-numbered groups or natural drifts rather than straight lines for a more relaxed look.
• Tulips are best planted in November, which reduces the risk of tulip fire and gives them a cold spell.
• Cover pots and newly planted borders with chicken wire or mesh if squirrels and mice are a problem.
• Label your plantings clearly — it is easy to forget where you put the smaller bulbs.

Water bulbs in after planting if the soil is dry, and top containers with grit to deter pests and keep the compost from splashing. If you garden on heavy soil, consider planting in pots or raised beds where drainage is better.

Move Tender Plants Under Cover Before the Frost

The first hard frost can arrive suddenly, especially in northern and inland areas. Tender plants such as pelargoniums, citrus, cannas, dahlias and many succulents need to be under cover before temperatures dip below freezing. Do not wait for a severe forecast — a single cold night can blacken foliage and finish off a plant that has thrived all summer.

• Clean greenhouse glass and check vents so maximum light reaches overwintering plants.
• Move pots into a greenhouse, conservatory, porch or bright shed. Grouping them together creates a microclimate.
• Lift dahlias after the first blackening frost, cut stems back to about 10cm, and store tubers in dry compost or sand.
• Wrap terracotta and ceramic pots in bubble wrap or hessian to stop them cracking in freezing weather.
• Check plants for pests before bringing them inside, and reduce watering as growth slows.

For borderline-hardy shrubs in the ground, a double layer of horticultural fleece or a wrap of straw and hessian can make all the difference. Remove the covering on mild days to prevent damp and mould.

Insulate Outdoor Taps and Protect Pipework

A burst pipe is one of winter’s most expensive garden mishaps, and it is entirely avoidable. Start by disconnecting hosepipes, sprinklers and hose reels, then drain them and store them somewhere dry. If your outdoor tap has an isolation valve, turn off the supply and open the tap to drain any remaining water.

• Fit an insulated tap cover, or wrap the tap with foam lagging and secure it with tape.
• Lag exposed pipes with pipe insulation, especially where they run along cold walls or through unheated outbuildings.
• Check water butts and rain barrels; empty or drain them if they are cracked or likely to freeze solid.
• Fix dripping taps now — a steady drip can freeze and block the pipe.

If you cannot isolate the outdoor tap, a simple cover made from an old towel and a plastic bag tied securely around the tap will offer some protection. It is not elegant, but it works.

Check Containers, Structures and Wildlife

Pots left flat on the ground can become waterlogged or freeze solid. Raise them onto pot feet or bricks so excess water can drain, and move them closer to the house or a sheltered wall. Check ties, stakes and climbing frames before winter gales arrive, and secure loose greenhouse panels or felt roofing.

Finally, remember the wildlife that shares your garden. Keep a shallow dish of water topped up and unfrozen, hang bird feeders where cats cannot reach them, and leave a small log pile in a quiet corner. These simple touches cost little and make a real difference to birds, hedgehogs and insects through the coldest months.

With these autumn tasks complete, you can enjoy the quieter season knowing that your garden is protected and ready to burst back into life when spring arrives.