There is a particular pleasure in filling a basket from a hedgerow on a bright autumn afternoon. The lanes around many British villages are lined with fruit that has ripened without any help from us, and with a little knowledge you can turn it into jellies, cordials and puddings. The golden rule is simple: never eat anything unless you can identify it with absolute certainty. Foraging rewards patience and care.

Start with the law and a good pair of eyes

In the UK, picking wild fruit, flowers, foliage and fungi for personal use is generally permitted under the Theft Act 1968, as long as you do not uproot plants or pick for commercial gain. Uprooting any wild plant without the landowner’s permission is an offence under the Wildlife and Countryside Act 1981. Some species are protected, and many nature reserves, SSSIs and private estates have their own byelaws. Always check before you pick.

Avoid busy roadside verges where exhaust fumes, dog fouling and hedge-cutting machinery make fruit unsafe. Stay away from fields that may have been sprayed. Take only what you need, leave plenty for wildlife, and never strip a bush bare. A shallow basket or cotton bag is better than a plastic tub.

Five reliable autumn hedgerow fruits

• Blackberries: look for arching, thorny canes and berries that turn from green to red to deep black. They ripen from August to October. Pick only fully black fruit that comes away with a gentle tug, and avoid berries growing low to the ground.
• Sloes: the blue-black fruit of the blackthorn, a dense thorny shrub with white spring flowers. The round, bloomy fruit is fiercely astringent until the first frosts, so it is traditionally used for gin. If frost has not arrived, freeze them overnight.
• Crab apples: small, sour wild apples, usually green flushed with yellow or red. Ready in autumn, they make excellent jelly because they are high in pectin. Cut one open and discard any with brown tunnels.
• Elderberries: these grow in flat, creamy flower heads that turn into drooping clusters of tiny purple-black berries from late August. Raw elderberries and their stems are toxic; cook them thoroughly, remove the stalks, and never use unripe green berries.
• Rosehips: the bright red or orange oval fruits of wild roses, ripe in autumn and packed with vitamin C. The fine hairs inside are an irritant, so use them for syrup or jelly strained through muslin.

Poisonous lookalikes and the 100% rule

Several dangerous plants grow in the same hedgerows. Deadly nightshade has shiny black berries and purple bell flowers; every part is highly toxic. Woody nightshade has red berries. Black bryony produces strings of bright red berries on a twining vine. Yew has a red aril around a green seed; the seed and foliage are deadly. Use two reliable field guides and check leaf, flower, bark, fruit and smell. If in doubt, leave it out. Never mix unknown berries with known ones.

Harvesting, handling and preparing

Pick into shallow containers so fruit does not crush. Rinse everything at home and discard stalks, leaves and damaged berries. Strip elderberries from their stems with a fork and cook promptly. Top and tail rosehips, then chop before simmering. Sloes can be pricked or frozen to break the skin. Wash your hands before and after foraging.

Three simple seasonal recipes

• Sloe gin: fill a sterilised jar with 500g sloes, 250g caster sugar and 1 litre gin. Prick or freeze the sloes first. Shake daily for a week, then weekly for three months. Strain and bottle; it improves with age.
• Blackberry and apple crumble: put 300g blackberries and 2 peeled, chopped Bramley apples in a dish with 100g sugar. Rub 75g butter into 150g plain flour, stir in 75g demerara, scatter over the fruit. Bake at 180°C (160°C fan, Gas 4) for 35–40 minutes.
• Rosehip syrup: simmer 500g chopped rosehips in 1.5 litres water for 15 minutes. Strain through muslin. Repeat with the same hips and 1 litre fresh water. Combine, reduce by half, then add 500g sugar per 500ml. Bottle and dilute to taste.

Elderberry cordial follows a similar pattern: simmer 1kg stripped berries with 1 litre water, a sliced lemon, a few cloves and a thumb of ginger for 20 minutes. Mash, strain, stir in 500g sugar until dissolved, then bottle.

Forage with respect and return often

The hedgerow is a larder, not a supermarket. Take a little from many places rather than everything from one. Leave the best berries for the birds, close gates, and carry out anything you bring in. Return through the seasons: wild garlic in spring, elderflowers in early summer, blackberries in late summer, sloes and rosehips in autumn. Each walk teaches you more, and your recipes will taste better for the care you took.