How to Store Garden Furniture Cushions Over Winter

Outdoor cushions are the first thing to suffer when the British weather turns, yet they are also the easiest to protect. This guide is for anyone who wants their garden seating to look as good next May as it did this July, without buying replacements every spring. By the end you will know exactly how to clean, dry and store your cushions to keep damp, mould and mildew at bay.

1. Why winter storage matters

Garden cushions are built for showers and sunshine, not for months of unbroken British damp. Even cushions with water-resistant covers rely on being able to dry out between downpours. Over autumn and winter that never happens: overnight condensation, morning dew and weeks of rain keep the foam and fibre filling permanently moist. That trapped moisture is what breeds mould and mildew, leaves black speckles across pale fabric, and gives cushions that unmistakable musty smell.

Storing them properly is far cheaper than replacing them. A single wet winter can ruin an otherwise perfect set of garden sofa cushions, while ten minutes of prep in October keeps them fresh for years. The principle is simple: get them clean, get them bone dry, and keep them that way somewhere air can circulate. Everything else in this guide follows from those three rules.

2. Clean and dry before you store

Never pack away a cushion that is dirty or even slightly damp. Any moisture or organic residue sealed inside a box or bag over winter is an open invitation to mildew. Set aside a dry, breezy afternoon and work through each cushion before it goes anywhere.

• Brush off loose debris — leaves, pollen, cobwebs and crumbs all feed mould, so give each cushion a firm brush or a shake first.
• Spot-clean stains — use warm water with a mild washing-up liquid and a soft brush. Rinse thoroughly so no soap residue is left behind.
• Check the care label — some covers unzip and are machine-washable on a cool cycle; others must be sponged only. When in doubt, hand-clean.
• Dry completely — this is the step people rush. Stand cushions on their edge in full airflow, turn them, and give them at least 24 hours. Press the middle firmly; if it feels cool or heavy, the foam core is still wet inside.

3. Choosing the right storage spot

The ideal storage location is dry, ventilated and stable in temperature. A spare room, loft, insulated garage, utility cupboard or the space under a bed all work well. What matters most is that the air is dry and that cushions are kept off cold, damp surfaces such as bare concrete or stone, which draw condensation upwards into the filling.

Unheated sheds and uninsulated garages are a compromise. They keep the rain off but swing between damp and freezing, and condensation forms every time the temperature shifts. If a shed is your only option, raise cushions off the floor on a pallet or shelf and pair the space with the moisture controls in section five. Avoid basements or any spot that smells musty already — that smell is mould spores looking for a new home. For a broader look at protecting outdoor pieces through the seasons, our garden furniture buying guide covers frame materials and weather resistance too.

4. Storage containers and coverings

Once cushions are clean and dry, how you contain them decides whether they stay that way. The golden rule is to protect against dust and pests while still allowing some air movement — a completely airtight seal traps any residual moisture and turns your storage box into a mildew incubator.

• Breathable storage bags — cotton or non-woven fabric bags keep dust off while letting the cushions breathe. Ideal for indoor storage.
• Vacuum bags — brilliant for saving space with fibre-filled cushions, but only if the cushions are guaranteed bone dry first. Not suitable for thick foam, which can lose its shape.
• Plastic storage boxes — sturdy and pest-proof for garages and lofts. Do not snap the lid fully airtight; leave a small gap or drill a couple of ventilation holes, and add a desiccant.
• Waterproof cushion storage bags or boxes — purpose-made outdoor options if you genuinely cannot store indoors.

Whatever you choose, stack cushions loosely rather than crushing them, and store them flat or standing rather than folded, so the filling keeps its shape. Decorative scatter cushions and throws can go in the same box; if you want to refresh your indoor cushions at the same time, autumn is the natural moment to rotate soft furnishings and store the summer set together.

5. Beating damp, mould and mildew

Mould needs three things: moisture, warmth and something to feed on. Remove any one and it cannot grow. You have already tackled the food (by cleaning) and much of the moisture (by drying), so the last job is to keep humidity low inside your storage.

• Silica gel or desiccant packs — drop a few into each box or bag to absorb residual moisture. Larger reusable tubs of desiccant work well in sheds and garages.
• Moisture absorbers — refillable damp-trap tubs pull humidity out of the surrounding air in unheated spaces.
• Airflow — never seal cushions in a fully closed, unventilated container. A little air movement stops condensation forming.
• Elevation — keep everything off cold floors on shelving, pallets or slats.

Check your stored cushions once mid-winter if you can. A two-minute inspection lets you catch a leaking roof or a failed damp-trap before it ruins the whole set.

6. Storage methods compared

Different homes suit different approaches. Use the table below to match a method to the space you actually have, then apply the moisture controls from section five on top.

As a rule of thumb, indoor storage in a breathable bag beats every outdoor option for keeping mildew away. Reserve the outdoor methods for when indoor space genuinely is not available.

7. If you have no indoor space

Not everyone has a loft or spare cupboard, and that is fine — you can still protect cushions outdoors with a bit more care. The trade-off is that you must manage moisture more actively, because you are storing in the same damp air you are trying to escape.

A waterproof deck box or storage bench is the most practical solution. Look for one with a raised base or feet so it never sits in a puddle, and ideally with some ventilation so condensation can escape. Line the bottom with a slatted board or a layer of bubble wrap to create an air gap, add generous desiccant, and resist over-packing so air can move around each cushion. A storage bench has the bonus of doubling as extra seating during the season. If your cushions must stay on the furniture, invest in fitted, breathable covers for the whole set and tilt seats forward so water runs off rather than pooling — the same weatherproofing logic we set out in our guide on caring for your furniture.

8. Bringing cushions back in spring

When the weather turns, resist the urge to simply throw the cushions back out. A short spring routine keeps them fresh and lets you spot any problems early.

• Air them first — give cushions a few hours outdoors on a dry, breezy day to shake off any storage staleness.
• Inspect closely — check seams, zips and piping for any specks of mildew. Catch it now and a wipe with a diluted anti-mildew solution sorts it; leave it and it spreads.
• Freshen the covers — a light brush, or a cool wash for removable covers, revives colour and texture.
• Plan a refresh — spring is the perfect time to add a new set of scatter cushions or update your seating. Browse the full garden furniture range or pair a fresh set with garden dining sets for al fresco meals.

Choosing new cushions? Our advice on how to choose cushions covers fill, size and fabric so your outdoor seating looks styled rather than an afterthought, and a few weatherproof decorative accessories finish the space off.

9. Buying with confidence

Well-stored cushions can last many seasons, but when it is time to refresh your outdoor set, Elystra Living makes it easy. We offer fast tracked delivery so you are ready in time for the first sunny weekend, and a straightforward 30-day returns policy if a piece is not quite right once it is in place. You can also spread the cost with Klarna interest-free instalments, so refreshing your garden seating need not mean a single big outlay. Take a look at our garden furniture collection and get your outdoor space summer-ready with confidence.