Blackberry

Sun

Full sun gives the best crops; tolerates partial shade but produces less fruit.

Water

Keep soil evenly moist, especially during flowering and fruit development. Water deeply during dry spells without leaving roots waterlogged.

Soil

Fertile, moisture-retentive, well-drained soil, preferably slightly acidic to neutral.

Height

5-10 ft (1.5-3 m) with support

Spread

6-12 ft (1.8-3.7 m), potentially much wider if unmanaged

Flowers

White or pale pink flowers in late spring and summer, followed by fruit in summer and early autumn; timing varies by variety and climate.

Foliage

Toothed, usually compound green leaves on long, arching canes, commonly armed with prickles. Usually deciduous, but some forms retain leaves through mild winters.

Growth

Fast

Care needed

High

• Pollinators
• Heat tolerant
• Wildlife
• Low allergen
• Edible

Northern hemisphere months. In Australia, shift them by six.

Difficulty

Moderate

Toughness

Very tough

Pick your zone, country, light and whether you have pets.

1. Planting day

   1.6 ft (0.5 m)

2. After 1 year

   3 ft (1 m)

3. After 2 years

   5 ft (1.6 m)

4. After 3 years

   7 ft (2.1 m)

5. After 5 years

   7 ft (2.3 m)

   full size

About 3 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Cats and dogs

Safe

Native to

the UK

Invasive in

Australia

In the garden

Spreads vigorously: plan to contain it.

Growth rate

Fast

• Train canes along sturdy wires or a trellis, keeping new growth separate from fruiting canes.
• Water at soil level during dry weather, particularly while berries swell.
• Apply compost and a balanced fruit fertiliser in spring; avoid excessive nitrogen, which encourages leafy growth.
• Mulch annually, keeping mulch clear of the cane bases.
• Remove unwanted suckers and stop cane tips touching the ground, where they can root.
• Wear thick gloves and keep thorny growth away from paths.

Pruning. For the usual summer-fruiting types, cut canes that have finished fruiting to ground level after harvest, then tie in healthy new canes for next year's crop. Autumn-fruiting varieties need a different pruning plan; follow the instructions for your named variety.

Pick blackberries from summer into early autumn, typically June–October in the US, July–September in the UK and Canada, and December–March in Australia, depending on climate and variety. Choose fully black, plump berries that feel slightly soft and detach with a gentle pull; they will not ripen further after picking.

Winter

Plant dormant bare-root plants where soil is workable and not waterlogged; install supports before growth starts.

Early spring

Apply compost, feed if needed, and mulch the root area.

Late spring

Tie in new shoots and remove weak, crowded or unwanted suckers.

Summer

Water during dry spells and fit taut wildlife-safe netting if birds take much of the crop.

Summer to early autumn

Pick fully black berries when they detach easily; harvest frequently to reduce rotting fruit.

After harvest

Remove spent summer-fruiting canes at ground level and secure replacement canes to the wires.

Late autumn

Remove rooted cane tips outside the allotted bed and check supports before winter winds.

• Train along a sunny boundary fence to provide fruit without taking over the centre of the garden.
• Grow in a dedicated fruit row with currants or gooseberries nearby, leaving access for pruning and picking.
• Use a thornless garden variety on wires beside a kitchen garden for easier harvesting.
• Where locally appropriate, manage native brambles in a wildlife hedge for flowers, fruit and dense shelter.

Garden styles it suits: Cottage garden, Potager (kitchen garden), Wildlife garden, Native hedgerow, Edible landscape and Homestead.

Plant it with: Chives, Borage, Calendula, Yarrow, Currants and Gooseberries.

Wildlife: Flowers supply nectar and pollen for bees and other insects. Birds and mammals eat the fruit, while dense canes provide shelter and nesting cover; birds can also spread seeds beyond the garden.

• Cane blight and cane spots: remove affected canes in dry weather, disinfect pruning tools and thin crowded growth to improve airflow.
• Grey mould on fruit: pick frequently, remove mouldy berries and avoid overhead watering.
• Spotted wing drosophila: harvest promptly, remove overripe fruit and use suitable fine-mesh exclusion netting where this pest occurs.
• Poor fruiting: provide more sun, water during fruit development and avoid cutting out the young canes that should fruit next year on summer-fruiting types.

Not known to be toxic to cats, dogs, horses or people. Ripe fruit is edible; eating large amounts may cause digestive upset. Prickles can puncture skin and injure eyes or mouths, so thorny growth is a physical hazard rather than a poisoning risk.

Where it spreads. European blackberry complexes are major invasive weeds in temperate southern Australia, including New South Wales, Victoria, Tasmania, South Australia, southwestern Western Australia and the Australian Capital Territory; many are regulated, and planting or propagation may be prohibited.

• Red raspberry (Rubus idaeus)

  Ripe raspberries pull away leaving the central core on the plant, so the picked fruit is hollow. Blackberries retain the core inside the picked fruit.

• European dewberry (Rubus caesius)

  Usually has low, trailing stems and fruit with fewer, larger segments covered by a conspicuous blue-grey waxy bloom.

• Black mulberry (Morus nigra)

  Produces similar dark, clustered fruit but grows as a tree with simple leaves and no prickly bramble canes.

Rubus is the Latin name for bramble, and fruticosus means shrubby or bushy.

Propagation. Where legally permitted, tip-layer a healthy cane in late summer and separate it once well rooted. Use certified healthy nursery plants when starting a fruit bed; seedlings vary and may not retain a named variety's thornlessness or fruit quality.

Accepted botanical name

Rubus fruticosus

Native range

Austria, Baltic States, Belarus, Belgium, Czechoslovakia, Denmark, France, Germany, Great Britain, Hungary, Ireland and Italy.

Measured

Average height 91 cm.

Sources: GBIF (CC BY 4.0) and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.