Autumn in Britain is a forager’s season. The hedgerows are heavy with berries, the woodland floor is pushing up mushrooms, and the first frosts are just around the corner. But this generosity comes with a serious warning: Britain has some of the most beautiful and the most deadly fungi in Europe, often growing side by side. This beginner’s guide will help you start safely, ethically and legally.

Before you set out: safety, permission and the law

Foraging is not a free-for-all. In England and Wales, the Theft Act 1968 generally allows you to pick wild mushrooms, fruit and foliage for personal use, but uprooting any wild plant without the landowner’s permission is illegal. Open access land under the Countryside and Rights of Way Act gives you the right to roam, not the right to take plants or fungi. In Scotland, access rights are broader, but the Scottish Outdoor Access Code still asks you to take only small amounts for personal use and to respect local rules. Nature reserves, Sites of Special Scientific Interest, private estates and many public parks have their own bylaws that can ban foraging entirely.

Always check before you pick. If you are on public land, look for signs or ask the land manager. Never pick for commercial gain without written permission. And never dig up a plant or fungus — that damages the mycelium and is usually a criminal offence.

Mushrooms for beginners (and the deadly ones to avoid)

Start with a handful of distinctive species and ignore everything else. These four are widespread in British woodland and grassland, but each has lookalikes that demand care.

• Giant puffball (Calvatia gigantea): football-sized, smooth white skin, with a pure white, marshmallow-like interior. Cut it open to check. If it has a stem, gills, or any yellow, brown or green inside, leave it.
• Field mushroom (Agaricus campestris): white cap, pink gills that darken with age, and a pleasant almond or aniseed smell. Yellow stainer looks similar but bruises bright yellow and smells of ink or phenol. Avoid any mushroom that stains yellow.
• Penny bun or cep (Boletus edulis): brown bun-shaped cap, white pores underneath rather than gills, and a stout stem with fine white reticulation. Avoid boletes with red pores or those that stain blue quickly.
• Chanterelle (Cantharellus cibarius): golden, funnel-shaped, with forking ridges rather than true gills, and a faint apricot smell. False chanterelle has true gills and grows on rotting wood; jack-o’-lantern has sharp gills and grows in clusters on wood.

Never eat any mushroom with white gills, a ring on the stem and a cup-like volva at the base. That is the signature of the death cap and destroying angel, which kill. Little brown mushrooms are also a no-go. Use a good guidebook, take a spore print, and learn from a local expert. If in doubt, throw it out. Cook all mushrooms thoroughly.

Berries, nuts and hedgerow harvest

The hedgerow is safer ground for beginners. Blackberries are abundant from late August to October; pick only fully black, easy-to-release fruit. Sloes are best after the first frost, when they soften and lose some bitterness — perfect for gin or jam. Elderberries must be cooked; remove the stalks and never eat them raw. Rosehips are rich in vitamin C but avoid the hairy seeds inside. Hazelnuts are ready when the husks turn brown and the nuts fall freely. Sweet chestnuts sit inside spiky green husks and have a pointed tip; do not confuse them with conkers, which are poisonous.

Dangerous berries to know: yew has bright red, cup-like arils with a toxic seed; deadly nightshade has shiny black berries and dull green leaves; bryony and hemlock water dropwort are also lethal. Never pick from busy roadside verges, and avoid fruit below waist height where dogs may have been. Leave plenty for birds and mammals.

Respecting woodland habitats and wildlife

Foraging should leave the wood richer, not poorer. Use a basket or mesh bag for mushrooms so spores can drop as you walk. Do not rake leaf litter or strip whole patches — take only a small fraction and rotate your spots. Avoid trampling moss, lichen and deadwood, which support entire ecosystems. Stay on paths where possible, close gates, and take all litter home. Keep dogs under control, especially during deer rutting season. Never pick rare or protected species, and never forage in a nature reserve or SSSI without permission.

Kit, timing and good habits

Carry a sharp knife, a soft brush, paper bags, a basket, gloves, a hand lens, a reliable guidebook, a map, a phone and a basic first aid kit. Tell someone where you are going and when you will be back. Early morning after rain is often best, but avoid picking after heavy frost if you are after mushrooms. Wash and cook your harvest the same day, or dry and freeze it. Label everything and never mix unknown species with known ones. A local foraging course is worth every penny. If in doubt, leave it out. That single habit will keep you safe for many autumns to come.