Year-Round Growing in the UK

The four-season larder

It is a common belief that the UK growing year runs from the last spring frost to the first autumn one, and that everything in between is the harvest. In truth, with a bit of planning you can pick something fresh from the garden in every single month — even in the depths of January.

The trick is to stop thinking of your plot as a summer machine that switches off in October, and start thinking of it as a four-season larder. Some beds carry hardy crops that simply stand outside through the cold. Others are kept ticking over with small, repeated sowings. A few square metres under a cloche or in an unheated greenhouse stretch the shoulders of the season. And the cupboard, freezer and a tray of sand bridge the leanest weeks of late winter.

You will not get the lush, fast growth of June in the middle of winter — be honest with yourself about that. From November to February, growth all but stops, and the garden becomes more of a fridge than a factory: crops sit and wait for you, rather than putting on new size. But "stops growing" is not the same as "nothing to eat". Plan for it now and you can keep the kitchen supplied twelve months of the year. This guide sits alongside our full grow-your-own year plan, which maps out the whole calendar month by month.

Hardy crops that stand through winter

The backbone of year-round growing is a small group of tough vegetables that shrug off frost and stand happily in the ground all winter, waiting to be picked as you need them. No freezer, no processing — just walk out and harvest.

Leeks are the classic British winter staple. Sown in spring and planted out in early summer, they sit in the soil from autumn right through to March, and a sharp frost actually sweetens them. Pick the varieties bred for cold — 'Musselburgh' is the old reliable — and you have hearty fresh stems for soups and stews all winter.

Kale is arguably the most generous crop you can grow for the effort. Once established it crops from autumn through to the following spring, and the leaves are sweetest after a frost. Keep picking the lower leaves and it keeps pushing out new ones from the top. 'Cavolo Nero' and curly 'Dwarf Green Curled' both stand the cold well.

Parsnips are sown in spring and left in the ground until you want them — there is no rush to lift. Frost converts their starch to sugar, so the roots you dig in December and January taste far better than anything pulled in October. Leave them where they grow and harvest through to February.

Brussels sprouts and winter cabbage (such as the crinkly Savoys) are the other two pillars of the cold-weather plot. Both are brassicas, so keep them in a different bed each year and watch for clubroot and the autumn flush of cabbage white caterpillars. Sprouts stand from November to February; firm-hearted January King cabbages do the same.

Chard and perpetual spinach keep producing usable leaves through mild spells and sit dormant through hard frosts, then bolt back into growth in early spring — often your very first fresh greens of the new year.

And don't overlook winter salad leaves: mustards, mizuna, land cress, winter purslane and hardy lettuces sown in early autumn give you cut-and-come-again leaves right through the cold months, especially with a cloche over them.

Successional sowing for continuity

Hardy crops cover the cold months, but the gluts and gaps of the rest of the year are tamed by successional sowing — the simple habit of sowing little and often rather than everything at once.

Imagine you sow a whole packet of lettuce in one go in April. You get thirty hearts all ready in the same fortnight in June, most of which bolt before you can eat them. Sow a short row every two or three weeks instead, and you get a steady trickle of lettuce from late spring into autumn. The same logic applies to radishes, salad leaves, spring onions, beetroot, carrots, peas, dwarf beans and spinach.

A few practical rules make it work in the UK climate:

• Sow when the last batch reaches a recognisable seedling stage, not on a rigid calendar — that way the queue self-adjusts to a cold or warm spell.
• Shorten the gaps in high summer (crops mature fast) and lengthen them again in autumn (growth slows).
• Switch to bolt-resistant or hardy varieties as the season turns, and use the planting calendar to check the realistic last sowing dates for your area.
• Stop sowing tender crops by midsummer — anything sown after mid-July rarely has time to crop before the light fades, with the exception of fast salads under cover.

Done well, successional sowing is what turns a couple of June gluts into a long, even harvest — and it is covered in full in our guide to successional sowing explained. It is also the single biggest lever for growing to save money, because nothing is wasted to a glut.

Stretching the seasons

The third tool is protection. You don't need a heated glasshouse — a few pounds of kit buys you several weeks at each end of the year, which is often the difference between a bare January and a salad bowl.

Cloches — low tunnels of clear plastic or glass over a row — warm the soil in late winter so you can sow a few weeks earlier in spring, and keep autumn salads and overwintering crops dry and a couple of degrees warmer. They are the cheapest way in, and you can improvise one from a cut-down plastic bottle over a single plant.

Cold frames are a step up: a low, lidded box with a clear top, used to harden off spring seedlings, overwinter young plants, and grow winter salads to picking size. Tuck one against a south-facing wall and prop the lid open on mild days to stop it cooking or getting stuffy.

An unheated greenhouse or polytunnel is the biggest leap. It won't keep frost out entirely, but it lifts the temperature, blocks the wind and keeps the rain off — enough to grow winter salads, overwinter hardy herbs, and get tomatoes and chillies away weeks earlier in spring. In the darkest weeks even an unheated greenhouse mostly holds crops rather than grows them, but holding a tray of mizuna and land cress in good condition is exactly what you want in January.

Storing to bridge the hungry gap

Even the best-planned plot has a lean stretch — the so-called "hungry gap" from late February to May, when winter crops are finishing and spring sowings aren't ready. The store cupboard bridges it.

Roots like maincrop carrots and beetroot keep for months packed in boxes of just-damp sand in a cool shed or garage, lifted before the hardest frosts. Onions and garlic, properly dried and ripened in late summer, hang in a cool airy place well into spring. Winter squash and pumpkins, cured in the sun for a fortnight after picking, store on a shelf indoors for months — see our guide to storing winter squash. And almost anything else — beans, peas, courgettes, tomatoes, gluts of soft fruit — freezes, dries or turns into a jar of something to see you through.

Our full guide to storing your harvest walks through each method in detail, so that a September glut becomes a March dinner. Storing well is the quiet half of year-round growing: it is far easier to keep a good harvest than to grow a fresh one in midwinter.

Put the four together — hardy crops standing outside, successional sowings filling the gaps, a little protection at each end, and a well-stocked store — and you genuinely can eat from your own garden every month of the year. None of it is difficult; it just needs to be planned a season ahead. For the month-by-month version of all this, work through the grow-your-own year plan, and lean on the wider getting-started guides as each job comes round.