Why the fells reward a gentle hand

The British hills are generous when the season is right. Bilberry bushes on a Lakeland slope, rowan berries glowing in a Highland glen, sorrel tucked between rocks — these are not just scenery. Picking a little for your own tea or pudding is one of the oldest pleasures of hillwalking. Yet the same freedom carries a duty. Upland habitats are slow-growing, thin-soiled and easily damaged. A plant that takes a decade to establish can be stripped in a morning. Foraging responsibly is the difference between being a guest on the hill and being a vandal.

What the law says, in plain English

Walkers in England and Wales benefit from a simple legal position: you may pick leaves, flowers, fruit and fungi for your own personal use from land you have lawful access to. Digging up a plant — roots and all — is a different matter, and is treated as theft. In Scotland the position is broadly similar, with the added clarity of the Scottish outdoor access code.

Three rules sit on top of that:

• Protected species — many rare upland plants are listed under the Wildlife and Countryside Act 1981, and it is an offence to pick, uproot or destroy them. Some are so scarce that a single picking could matter.
• Protected sites — on Sites of Special Scientific Interest, National Nature Reserves and most conservation-owned land, picking may be restricted or forbidden entirely. Check before you fill a bag.
• Commercial picking — a permit is normally required if you intend to sell what you gather. Casual, personal foraging is the only thing most of us should ever do.

Common plants worth knowing

Start with species you cannot confuse with anything dangerous. These are widespread, harvestable and genuinely useful on a hill day:

• Bilberry (also called blaeberry or whinberry) — low, wiry shrubs with small oval leaves and dark blue-black berries from late July to September. Sweeter than a shop blueberry, and the leaves make a pleasant tea.
• Wild strawberry — tiny, intensely flavoured fruits on dry banks in June and July. Easy to identify by the three-toothed leaves and white flowers.
• Sheep's sorrel — arrow-shaped leaves with a sharp, lemony taste, excellent in a sandwich. Common on acid grassland and heath.
• Common nettle — young tops in spring make soup, pesto or tea. Wear gloves, and pick only the top four leaves.
• Rowan and hawthorn berries — abundant in autumn but bitter raw, so better cooked into jelly. Leave plenty for the birds, which need them more than we do.
• Wild thyme — aromatic, low-growing and superb with roast lamb. Snip sprigs rather than pulling up the plant.

Wild garlic is a lowland treat rather than a fellside one, but it is worth mentioning because it is so often over-picked. Take a handful of leaves from a large patch, never the bulb.

How much is enough

The old country rule is the one to keep: take no more than one in twenty. If a patch holds twenty plants, you take from one. If it holds five, you walk on. The rule matters most on the fells, where growth is slow and recovery takes years.

• Pick with scissors or fingernails, leaving the base of the plant intact so it can regrow.
• Spread your harvest across a wide area rather than stripping one bush.
• Leave flowers and seed heads wherever you can — that is next year's crop.
• Take only what you will actually use within a few days. A bag of wilted bilberries is a waste of a hillside.
• Work inwards from the edge of a colony gently, so the plants at the margins can carry on regenerating it.

Species to leave alone

Some plants are simply off-limits, and it is worth learning their names before you lace up your boots. Cloudberry, that amber jewel of Scottish and Pennine peat bogs, is scarce and slow to fruit; admire it, photograph it, leave it. Cowberry is more widespread but still vulnerable to heavy picking. Alpine species such as purple saxifrage, moss campion and alpine lady's-mantle cling to ledges where a single misjudged grab can destroy decades of growth.

Mosses, liverworts and lichens are almost never worth taking and are frequently protected. Fungi deserve special caution: many upland species are rare, some are deadly, and the mycelium beneath the soil is the real organism. If you cannot identify a mushroom with total confidence, leave it where it grows.

Hillcraft for a forager's day out

Foraging adds a pleasant purpose to a walk, but it should never compromise your safety or the hill itself.

• Tell someone your route and carry a map, compass and waterproofs. Berry-picking distracts; the weather on the tops does not wait.
• Stay on rights of way and open access land. In England and Wales that generally means access land under the Countryside and Rights of Way Act 2000. Do not cross walls, fences or crops.
• Watch for ticks in long grass and bracken, and check yourself at the end of the day.
• Leave no trace — no trampled patches, no litter, no fires on moorland. Peat and heather burn easily and recover slowly.
• Wash your harvest before eating, and never pick from roadside verges where spray and exhaust fumes linger.
• Share the hill with grazing animals, ground-nesting birds and other walkers. Close gates, keep dogs under control, and give wildlife space.

Do all that and you will come home with stained fingers, a full basket and a clear conscience — which is, on balance, the finest way to end a day on the fells.