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Blackberry

Rubus fruticosus

Fruit

Blackberries are vigorous, thorny or thornless cane fruits that produce large, richly flavoured berries in late summer. They are among the most productive and low-maintenance fruits in the organic garden.

Growing Conditions

Sunlight

Full Sun

Water Needs

Moderate

Soil

Well-draining, slightly acidic loam; pH 5.5–7.0

Spacing

3–4 feet in rows; 8 feet between rows

Days to Maturity

Year 2 from planting; full production in year 3

Growing Zones

1
2
3
4
5
6
7
8
9
10
11
12
13

Thrives in USDA Zones 5–10

Companion Planting

Good Companions

Keep Away From

When to Plant

  • Transplant

    Bare-root canes in late autumn to early spring while dormant

  • Harvest

    Late summer; berries ripen over several weeks — harvest when fully black and soft

Organic Growing Tips

  • Choose thornless varieties like Ouachita or Triple Crown for easier harvesting and management.

  • Train canes onto a wire support system to improve airflow and dramatically reduce disease.

  • Mulch roots with compost or leaf mould annually to maintain moisture and feed the plants.

  • Do not plant near raspberries — they share diseases and can cross-pollinate.

Common Pests

  • Raspberry Beetle
  • Aphids
  • Grey Mould (Botrytis)
  • Cane Spot
  • Spotted Wing Drosophila

All pest management in Garden uses safe, organic, non-toxic methods only. No synthetic pesticides, ever.