A Forager's Calendar for the British Countryside

Read the land before you read the calendar

Foraging is less about memorising a list and more about learning to watch one place through the year. A hedgerow you pass in March is a different larder from the same hedgerow in September, and a stretch of lowland heath will feed you only if you know which weeks it gives freely and which weeks it asks you to leave it alone. Walk the same path often. Note where the first hazel catkins open, where the elderflowers stand thickest, which bank is covered in bilberry. The calendar below is a rough guide to what to look for, but the land sets the pace, and it runs late in the north and on high ground.

A few rules keep this pleasant and lawful. Take a little from many places rather than everything from one, so the plant or fungus can recover and the wildlife that depends on it still eats. Never uproot a wild plant without the landowner's permission — under the Wildlife and Countryside Act 1981 all wild plants are protected from uprooting, and a handful of rare species are fully protected. Many heaths, commons and reserves are Sites of Special Scientific Interest with their own bylaws, so check before you pick. Above all, never eat anything unless you are certain of its identity. Use two good field guides, learn the handful of genuinely dangerous species first, and treat the umbellifers and the little brown mushrooms with real respect.

March to May: young leaves, shoots and early flowers

Spring is the season of greens and gentle flavours. The first tender nettle tops appear on waste ground and hedge bottoms, best picked before they flower and blanched briefly to soften the sting. Wild garlic, or ramsons, carpets damp woodland floors from March, and the leaves are far better than the flowers for cooking; three-cornered leek follows in the milder south and west. Look for young dandelion leaves, sorrel, chickweed, and the first hawthorn buds, sometimes called bread and cheese.

On the heath, this is when gorse keeps its promise — the bright yellow flowers smell faintly of coconut and can be infused in syrup or vinegar, though the bushes are unforgiving to bare arms. Sweet gale, or bog myrtle, unfurls on wet heath and bog edges, its leaves a good aromatic addition to game and fish. Heather tips can be gathered for tea, but take only a pinch from each plant.

June and July: flowers in their prime

Early summer belongs to scent. Elderflower is the great ritual of June, picked on a dry, sunny morning when the heads are creamy and fully open — avoid any with brown flowers or a musty smell. Meadowsweet sweetens damp meadows, and lime flowers hang over town streets and country lanes alike. Wild strawberries ripen in dry, sunny places, tiny and intensely flavoured. On chalk and acid heaths, bilberry fruit begins to darken from July, and this is the finest of all the heathland harvests: pick into a shallow container, as the berries crush easily.

• June: elderflower, meadowsweet, wild strawberry, lime flower, hogweed seed heads (only if you are fully confident with umbellifers).
• July: bilberry, first blackberries, wild raspberry, marjoram on chalk downland, sea beet along the coast.

August and September: the hedgerow at full stretch

Late summer is the busiest and most generous time. Blackberries are the gateway fruit for most foragers, and the best are often along sunny field edges and beside railway cuttings rather than deep in shade. Rosehips, haws, sloes and elderberries follow. Elderberries need cooking and, ideally, de-stalking with a fork; sloes are better after a frost, or a night in the freezer, and are destined for gin. Rowan berries on higher ground make a sharp, bright jelly.

Nuts come into their own too. Hazelnuts are ripe when the husks yellow and the nut rattles loose; squirrels will beat you to them, so watch for nibbled shells and take a share early. Sweet chestnuts fall in October on sandy, acid soils — the same ground that suits heathland. If you walk heathland in late summer, keep an eye out for juniper, a slow-growing berry best used sparingly in game dishes, and leave most of it for the birds.

October and November: fungi, and knowing your limits

Autumn rain brings the mushroom season, and it is also where the stakes rise sharply. Beginner-friendly species — hedgehog fungus, giant puffball, shaggy ink cap, field blewit, wood blewit, winter chanterelle — should be learned one at a time, in the field, and preferably with someone experienced. Learn the deadly ones first: the deathcap and the destroying angel, both pale and growing under oak, beech and birch, and the small brown Galerina species on dead wood. Never pick from a mixed basket of species you cannot name individually, and never eat a mushroom that is past its best.

Hedgerow work continues alongside. Crab apples, medlars, quince, beech mast for oil and roasting, and the last of the rosehips are all worth the walk, and a cold snap after rain makes everything taste sharper.

December to February: the quiet, useful months

Winter foraging is slow and satisfying. Winter chanterelles and velvet shanks appear on dead wood in damp spells, and wood blewits can survive a light frost. Sea buckthorn berries cling to coastal bushes and need patience and gloves, as the thorns are vicious. Watercress grows in clean, flowing chalk streams — never gather it from still or muddy water, and always cook it, because of the risk of liver fluke. Wild winter greens such as wintercress and sorrel keep a meal honest, and a pocketful of sloes or juniper turns a cold walk into something worth carrying home.

Then the wheel turns, the catkins open, and it starts again. Keep a notebook. The best foragers are not the ones with the longest species list, but the ones who know exactly what their own patch is doing this week.