How to Grow Blackberries and Hybrid Berries

Blackberries are about the easiest fruit you can grow, and a single well-trained plant can hand you kilos of glossy late-summer fruit for years. Pick a modern thornless variety, give it a fence or a few wires to scramble along, and the only real jobs are an annual prune and a yearly mulch. This guide covers varieties, planting, training, pruning, feeding and harvesting — everything a UK beginner needs to crop blackberries and their close cousins, the hybrid berries.

Why grow blackberries and hybrid berries

Blackberries earn their place for one simple reason: huge crops for almost no effort. They are vigorous, tough as old boots, and shrug off the cold, wet weather that defeats fussier fruit. If you have ever picked wild brambles from a hedgerow, you already know how generous they are — the cultivated kinds simply do it with bigger, sweeter berries and far fewer thorns.

They are also a true perennial. Plant once and the same root system crops for ten or fifteen years, sending up fresh canes every season. That makes them one of the best-value crops in the garden, alongside rhubarb and raspberries. For a beginner building up a productive plot, a blackberry is a plant-it-and-forget-it win — the sort of low-fuss crop we champion in our easiest crops for beginners guide.

The timing is a bonus too. Blackberries crop late — from August into early October — just as the summer gluts of strawberries and raspberries are finishing. That means fresh fruit deep into autumn, when little else in the garden is still cropping. They freeze beautifully, so a good year's pickings see you through to winter crumbles and jams.

Hybrid berries — tayberries, loganberries, boysenberries and the like — are crosses between blackberries and raspberries. They grow in exactly the same way, on the same kind of support, and bring their own flavours to the table: the wine-sweet tayberry, the sharp-tangy loganberry. Master a blackberry and you can grow any of them.

Choosing a thornless variety (or a hybrid)

Old-fashioned blackberries are armed with vicious thorns that make picking and pruning a bloody business. The single best decision a beginner can make is to grow a thornless variety — they crop just as heavily, taste just as good, and you can handle the canes bare-armed.

Recommended thornless blackberries for UK gardens:

• 'Loch Ness' — the go-to first blackberry. Compact, semi-upright canes that don't need a huge run, reliable heavy crops of large, sweet berries from August. Thornless and genuinely beginner-friendly.
• 'Oregon Thornless' — an old favourite with handsome, deeply cut "parsley" leaves that look ornamental on a fence. Slightly later, mid-sized fruit with excellent flavour. Vigorous, so give it room.
• 'Loch Tay' — early-cropping (often from late July), compact and thornless, good where space is tight.
• 'Reuben' — unusual in that it can fruit on the current year's canes, so it crops late summer into autumn and can be cut to the ground each winter. A neat option for small spaces.

Hybrid berries worth trying:

• Tayberry — a Scottish cross of blackberry and raspberry, with long, soft, deep-red berries and a rich, aromatic flavour. The thornless 'Buckingham' is the easy one to handle.
• Loganberry — sharper and more acidic, brilliant cooked into pies, jellies and crumbles. The thornless 'LY654' (sold as Thornless Loganberry) is the variety to seek out.
• Boysenberry — large, dark, slightly tart fruit with a wine-like depth; vigorous and best in a sheltered, sunny spot.

Where to grow blackberries

Blackberries are wonderfully unfussy, but you will get the heaviest, sweetest crops in the right spot.

Sun or part shade. Full sun gives the biggest, sweetest berries and the earliest ripening, but blackberries are one of the few fruits that still crop respectably in partial shade — making them ideal for a north- or east-facing fence where you can't grow much else. Hybrids prefer a touch more warmth and shelter.

Soil. Almost any soil suits them, as long as it isn't waterlogged. They prefer a moist but free-draining, fertile soil. If your ground is heavy clay or thin and hungry, dig in plenty of garden compost or well-rotted manure before planting — our guide to improving your soil walks you through it. On poor soils, a no-dig approach with a thick compost mulch works very well for cane fruit.

Space. This is the big one. Blackberries are vigorous and the canes can reach 2–4m long depending on variety. They need a structure to be trained along — a fence, wall or a run of posts and wires — and room to spread sideways. Don't try to cram one into a tight border; give a full-vigour variety like 'Oregon Thornless' 3–4m of horizontal space, or pick a compact variety such as 'Loch Ness' or 'Loch Tay' where space is short.

Blackberries can be grown in a large container if you choose a compact variety, much as you would grow other fruit in pots — but they're far happier in the open ground where the roots can roam.

Planting blackberries

The cheapest and best way to buy blackberries is as bare-root canes over winter, when they're dormant and sold by mail order. Pot-grown plants cost more but can go in almost any time of year, provided you keep them watered.

When to plant. Set bare-root canes out any time from November to March, whenever the soil isn't frozen or sodden. Autumn planting lets the roots settle before spring growth. Pot-grown plants can be planted spring through autumn — just avoid the depths of summer drought, and water well.

How to plant, step by step:

1. Prepare the ground. Clear all perennial weeds — blackberries will be in place for a decade, so start clean. Fork in a bucket of compost or well-rotted manure.
2. Dig a generous hole. Make it wider than the roots and deep enough to set the plant at the same depth it grew before (look for the old soil mark on the stem).
3. Spread the roots out, backfill with soil, and firm gently with your heel.
4. Water in well, then mulch around the base with compost or bark, keeping it clear of the stems.
5. Cut the cane back to a healthy bud about 25cm above the ground after planting. This feels brutal but encourages strong new canes from the base — which is what will fruit next year.

Spacing. Allow 2–2.5m between plants for compact varieties and up to 3.5–4m for vigorous ones like 'Oregon Thornless'. Hybrid berries sit around 2.5–3m apart.

Put up the support before or at planting. The standard system is a post-and-wire frame: stout posts at each end of the row (and every 3m or so along a long run), with horizontal galvanised wires stretched between them at roughly 90cm, 120cm, 150cm and 180cm. Against a fence or wall, fix horizontal wires to vine eyes at the same spacings. You'll tie the canes to these wires as they grow.

Training the canes

Training is the secret to a tidy, productive blackberry — and it's genuinely simple once you understand the rhythm of the plant. Blackberries fruit on canes produced the previous year. So at any time you have two sets of canes: this year's new green canes (which will fruit next year) and last year's canes (which are fruiting now).

The trick is to keep the two generations apart so you can pick easily and cut out the old wood without a tangle. The classic beginner-friendly method is the rope or fan system: tie the fruiting canes out to one side along the wires, and train all the fresh new canes up the middle and out to the other side. After harvest you simply remove the fruited side and swap the new canes across for next year.

Tie canes in loosely with soft string or flexible ties, spacing them along the wires so air and light reach the fruit. Do this little and often through the growing season — left to their own devices, the new canes will sprawl across the path and root wherever their tips touch the soil.

For the full method, including the alternance, rope and weaving systems and how to manage a vigorous plant, see our dedicated guide on training blackberry canes.

Pruning out the old canes

Pruning a blackberry is the one job that genuinely matters, and it follows a single clear rule: once a cane has fruited, it never fruits again, so cut it right out.

After harvest — late summer into autumn — work along the plant and cut every cane that carried fruit this year down to ground level. They're the older, browner, woodier-looking canes, and they'll be on the "fruited" side if you've trained by the rope method. Untie them, cut them out at the base, and pull the old wood clear (a job that's pure pleasure on a thornless variety).

That leaves only the fresh new canes that grew this season. Tie these in to the wires, spaced out evenly, and they'll carry next year's crop. If a plant has thrown up more new canes than you can fit, keep the strongest six to eight and remove the rest at the base.

The exception is primocane types like 'Reuben', which fruit on the current year's canes — these can simply be cut to the ground each winter and start fresh in spring. Hybrid berries are pruned exactly like ordinary blackberries: out with the fruited canes, in with the new.

Our step-by-step blackberry pruning guide shows exactly which canes to cut and when, with the same approach you'll recognise from pruning raspberries.

Feeding and mulching

Blackberries are not greedy, but a little annual care pays off in bigger, sweeter crops.

Feed in early spring. As growth begins, scatter a general-purpose fertiliser such as fish, blood and bone or pelleted chicken manure around the base, following the pack rate. That single spring feed is usually all they need. If you'd rather grow without bought fertilisers, a watering with a homemade plant feed such as comfrey liquid through the season works well.

Mulch every year. After feeding, lay a thick 5–7cm layer of mulch — garden compost, well-rotted manure or leaf mould — over the root area, keeping it just clear of the canes. A good mulch locks in moisture, suppresses weeds and slowly feeds the soil. It's the single most useful thing you can do for cane fruit each year, and it fits naturally into a no-dig system. Making your own compost keeps the cost to nothing.

Water in dry spells, especially in the first year while plants establish and when the fruit is swelling in late summer. Established plants are fairly drought-tolerant, but a long dry July will mean smaller berries if you let them go thirsty.

Common problems

Blackberries are among the most trouble-free fruits you can grow, but a few things are worth watching for.

Birds are the main pest — blackbirds and pigeons will happily strip ripening fruit. On a small plant, draping it with netting as the berries colour up solves it. The same simple approach protects soft fruit across the garden, much like protecting strawberries from birds. If you'd rather share, a generous blackberry is one of the most wildlife-friendly plants you can grow — the flowers feed pollinators and the fruit feeds birds, so consider netting only part of the plant and leaving the rest, in the spirit of a wildlife-friendly garden.

Raspberry beetle is the most likely fruit pest, affecting blackberries, raspberries and hybrids alike. The small beetle lays eggs in the flowers and the resulting grubs feed inside the berries, leaving dried-up, maggoty patches near the stalk. It's rarely severe on blackberries. To reduce it, keep the ground beneath the plants tidy (the larvae overwinter in the soil), and encourage natural predators by attracting beneficial insects — a few companion flowers nearby helps. A no-spray, organic approach is plenty for a home crop.

Grey mould (botrytis) can rot fruit in a wet summer, especially where the canes are congested. Good training and spacing so air flows freely through the plant is the best prevention — another reason to keep on top of tying in.

The blackberry's bramble vigour, which makes it crop so well, is also its only real downside: keep wandering canes and rooting tips in check and it stays an asset rather than a thug.

Harvesting and freezing

Blackberries are ready when they're fully black, plump and come away from the plant with the gentlest tug. A berry that resists is not ripe — leave it a day or two. The first berry to swell at the tip of each cluster is usually the largest and sweetest; later ones are smaller. Pick every few days through the season, as fruit ripens in waves from August onwards.

Pick into a shallow container so the soft fruit doesn't crush under its own weight, and handle them gently. Blackberries don't keep long fresh — a couple of days in the fridge at most — so eat, cook or freeze them promptly.

Freezing is the easy way to store a glut. Open-freeze the berries in a single layer on a tray until solid, then tip them into bags or tubs. Frozen this way they don't clump, and you can pour out a handful at a time for crumbles, smoothies and jams right through winter. They also cook down into superb jam and jelly — and the slightly tart loganberry makes a particularly good one.

Blackberries compared with raspberries

Beginners often wonder which cane fruit to start with, so here's how blackberries stack up against raspberries:

• Vigour and space. Blackberries are far more vigorous and need more room and stronger supports. Raspberries grow as upright canes in a tidy row and suit smaller plots better.
• Toughness. Both are tough, but blackberries tolerate poorer soil and more shade — they're the more forgiving of the two for a difficult spot.
• Season. Summer raspberries crop June–July; autumn raspberries September–October; blackberries fill the August–September gap between them. Grow both and you can pick cane fruit from midsummer to mid-autumn.
• Handling. A thornless blackberry is no harder to handle than a raspberry. Old thorny varieties are another matter — which is exactly why we steer beginners to thornless kinds.
• Pruning. The principle is identical for both: cut out the canes that have fruited, keep the new ones for next year.

If you've space for only one, raspberries are neater; if you have a fence or a wild corner to fill and want maximum fruit for minimum fuss, blackberries win. Many gardeners simply grow both.

What you'll need to get started

Once you've decided where your blackberry is going and put up its support, there's very little to buy. These few bits cover planting and the first season — and most are useful right across the garden. We've put this here, after the how-to, because the method matters more than the kit.

When it comes to the plant itself, buy a certified, named thornless variety from a reputable supplier rather than digging up a wild bramble — you'll get heavier crops, no thorns and disease-free stock.

For the bigger picture on building a productive plot, see our guides to starting a vegetable garden and gardening month by month, and browse the rest of our grow fruit section for raspberries, strawberries and more. A blackberry is one of the most rewarding plants you can put in — heavy, hardy and almost entirely hands-off once it's trained.