Why a Natural Mantelpiece Works So Well

The mantelpiece is the hardest-working shelf in the house. It is where the eye lands when you walk into a room, and it is where a season announces itself before anything else does. In autumn, that job is almost effortless, because the best materials are lying on the ground outside your front door.

Natural finds have a warmth that shop-bought ornaments rarely manage. They bring texture — prickly, papery, glossy, brittle — and a colour palette that no one has to design: rust, ochre, plum, moss green and the deep charcoal of a damp twig. They also cost nothing but a decent walk and a bit of patience. The trick is not to scatter them about randomly, but to gather with a little discipline and then arrange with a plan. A mantelpiece heaped with damp leaves will look like a chore by Tuesday. A considered display of dried, cleaned finds will carry you comfortably from early October to the first week of December.

What to Gather, and Where

Forage on footpaths, in your own garden, and along the pavement after a windy night. Always ask permission on private land, leave nature reserves and SSSIs alone, and never take a bird's nest — it is an offence to take or damage the nest of a wild bird while it is in use. Take a few from each spot rather than everything from one, and leave plenty behind for the wildlife that depends on it.

• Pinecones and fir cones — open ones look best; place closed cones in a warm room for a few days and they will unfurl.
• Conkers, acorns and beech mast — glossy and satisfying in a shallow bowl.
• Seed heads — teasel, honesty, allium, nigella and poppy heads all dry beautifully.
• Leaves — oak, beech, maple and sweet chestnut for shape; aim for leaves that are dry, not damp.
• Rosehips, crab apples and rowan berries — small, jewel-like, and best used sparingly.
• Dried hydrangea heads — if you have a bush, cut them now and they will hold their shape indoors.

Skip anything mouldy, squishy or riddled with tiny holes, as it will only disappoint you later.

Preparing Your Finds Before They Go on Display

Five minutes of preparation now saves an afternoon of clearing up later. Cones and seed heads often harbour small insects, so pop them in the freezer for 48 hours in a sealed bag, then let them come back to room temperature — a low oven at around 80°C for half an hour also works and helps them open. Brush off dirt with a dry pastry brush.

For leaves, press them between sheets of newspaper under a stack of books for a week to ten days. If you want them to keep their colour and stay supple, soak them for two or three days in a glycerine and water mix (roughly one part glycerine to three parts warm water) before drying them flat. Rosehips and berries will shrivel within a fortnight, so either accept that and enjoy them briefly, or keep them in a small glass of water tucked out of sight.

Arranging: Bowls, Ledges and Height

Treat the shelf as three zones — left, centre, right — and give each one a different job. Group in odd numbers, and vary the heights so the eye travels: a low bowl of conkers, a taller jug of seed heads, a small stack of books beneath a single dried hydrangea head.

• Use small bowls, vintage jelly moulds, enamel cups, wooden trenchers and glass apothecary jars.
• Sit everything on a liner of dried moss, hessian or a folded linen runner to protect the wood.
• Keep the heaviest pieces directly above the corbels or brackets, and check what the shelf is fixed into before loading it.
• A dab of sticky putty under glass and ceramics stops late-night slips.

Leave gaps. Empty space is what makes a display look gathered rather than dumped.

Light, Scent and Warmth

Autumn displays come alive with low, warm light. Battery fairy lights on a timer, wound loosely through a jug of twigs, are far safer than anything with a flame. If you do use candles, keep them at least 30cm from any dried material, never leave them unattended, and remember that dried foliage is highly flammable.

For scent without smoke, tuck cinnamon sticks, star anise and dried orange slices into a bowl. To dry your own orange slices, cut them 5mm thick and dry them in a cool oven at 60–80°C for three to four hours, turning once.

Keeping It Looking Its Best

Dust is the quiet killer of natural displays. Once a week, use a hairdryer on its coolest setting, held at arm's length, to blow dust away — or take everything outside and use a soft brush. Expect to refresh the arrangement every three weeks: swap out tired leaves, add new cones, and rotate bowls so the display feels newly made.

When you are finished with it all, break the seed heads and leaves into the compost bin rather than the general waste, and start looking forward to the next walk. That is the real pleasure of decorating this way — the season keeps handing you new material, free of charge.