Black Diamond

  • Season: 4-5 days before cultivar Marion
  • Main characteristic/s: High yielding, Thornless
  • Breeder: US Department of Agriculture-Agricultural Research Service (USDA-ARS), Corvallis, USA
Characteristics of Black Diamond
  • Bred by Chad Finn (USDA_ARS, Corvallis, USA)
  • High yielding
  • Attractive berries with good colour
  • Trailing habit
  • Thornless cane
Cropping Season
The harvest season of Black Diamond begins 4-5 days before and peaks about 2 days before Marion.

Fruit Quality
The fruit of Black Diamond are attractive, uniform conical shaped and similar in colour to Marion, being more black than Silvan. Fruit are firmer than Marion or Silvan, being comparable to Chester Thornless or Kotata. The flavour is good, though not as intense or aromatic compared to Marion. Good processed fruit quality.

Fruit Yield
Black Diamond is high-yielding, producing similar or higher yields compared to Marion, Silvan and Waldo. The fruit are medium sized, being consistently larger than Marion, but smaller than Siskiyou and averaged 5.8g in trials in the USA.

Plant Characteristics
Plants of Black Diamond have a trailing habit, with canes of moderate vigour, being less vigorous than Marion or Silvan. The canes are spine-free, except for the basal 30-40 cm portion of the primocanes. The fruiting laterals are of moderate length and tend to be stiffer than Kotata and Marion. Fruit are well displayed and easy to pick.

Disease Resistance
Black Diamond has been free of serious cane, leaf of fruit diseases in the USA. The variety has not shown to be particularly susceptible to Septoria leaf spot, purple blotch, cane and leaf rust.

Use of the Variety
Black Diamond produces fruit which have good processed fruit quality and is excellently adapted to machine harvesting, and will be a popular variety for the commercial processed blackberry industry. The variety will also be suitable for local fresh market sales and the amateur market. Black Diamond is expected to perform well in countries where trailing blackberries grow successfully, including Chile, New Zealand, UK, and the Mediterranean region.

Plant Supply
Black Diamond is a non-protected variety. Black Diamond plants are supplied by the following licensed propagators:

Propagation Licence Holders

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Sales Licence Holders

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Growing-on / Transformation Licence Holders

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