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Rubus 'Karaka Black' | Blackberry Bush

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An exceptional cultivar that is perfect if you want a single plant

Superb variety originating from New Zealand. Karaka Black has long arching stems that bear lobed mid-green leaves and white flowers in Summer. The flowers are followed by exceptionally long and large shiny black fruit that is firm, easy to pick and above all has an excellent flavour. The berries are superb for freezing and ideal for all-purpose use. Very long season running from early July through to September. Karaka Black is quick to establish itself and very easy to grow, it also has an excellent disease resistance to downy mildew. Recommended by the RHS as an excellent attractant and nectar source for bees and other beneficial insects. A quite outstanding performer!

In trials in New Zealand, Karaka Black produced more than 2X the yield of other popular blackberries such as Waldo and Silvan - around 15t/ha. The berries themselves are incredibly long, firm and shiny and boast exceptional flavour. Each berry usually weighs over 10g and carry a deep purple to black shine. This variety has been recommended by the RHS as an excellent attractant to bees and wildlife and although a new cultivar, is now the most planted blackberry in the UK due to it’s bumper crops and great tasting fruit.

Variety Information

  • Harvesting Period: Summer
  • Estimated Time to Best Yields: 2 Years
  • Uses: Eating Fresh, Jam-Making, Cooking
  • Supplied As: 3L Pot
  • Height on Arrival: 20cm (8 Inches)
  • Planting Distance: 1-2.5m
  • Eventual Height & Spread: 2m x 2m (6.5 x 6.5ft)
It is important to water your newly-planted raspberries or blackberries on a frequent basis (at least bimonthly for two months). You should also ensure adequate spacing (40 - 60cm) between each bush.

    • With bare root plants, you should soak their roots in water for up to 2 hours before planting, while with potted plants, you should drench their rootball.
    • If you are planting a bare root plant, dig a hole so that their first roots are no more than 2 inches below the ground.
    • If you are planting a containerised plant, make sure that the pot sits no lower than an inch below the ground.
    Please see below for our planting guidance:

  • Fill the planting hole with a mix of compost and garden soil, and add fertiliser and mycorrhizal fungi. Take care to not compress the soil.
  • Once you are happy with your efforts, provide your plant with a good watering.
  • Add mulch on top (whether bark and wood chippings, compost, manure, leaf-mould, and stones). Try to keep the mulch from touching the stem.
  • Blackberry and raspberry bushes are wonderful for the beginner grower. Below we address some common query topics:

    • Hardiness: Native to the UK, your blackberry or raspberry plant is well accustomed to the milder climate.
    • Position: Planting in full sun is always recommended, however they still tolerate light shade.
    • Soil: Soil types can be an unwelcome confusion as many plants will adapt to their conditions. Nonetheless, less than ideal conditions will certainly limit your plant’s growth. Waterlogged soils will starve your plant of oxygen, which plays a key role in photosynthesis; causing its roots to rot and creating an optimal environment for disease.
    More Information
    Is Collection/Mix? No
    Needs Ericaceous Compost? No

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